override, notnull

RegExpSupport/src/org/intellij/lang/regexp/intention/CheckRegExpForm.java

@@ -144,7 +144,7 @@ public class CheckRegExpForm {
         updater = new Alarm(Alarm.ThreadToUse.POOLED_THREAD, disposable);
         DocumentListener documentListener = new DocumentListener() {
           @Override
-          public void documentChanged(DocumentEvent e) {
+          public void documentChanged(@NotNull DocumentEvent e) {
             update();
           }
         };

images/src/org/intellij/images/editor/impl/ImageFileEditorProvider.java

@@ -57,7 +57,7 @@ final class ImageFileEditorProvider implements FileEditorProvider, DumbAware {
       editor.getEditor().getDocument().addDocumentListener(new DocumentListener() {
         Alarm myAlarm = new Alarm(Alarm.ThreadToUse.POOLED_THREAD, editor);
         @Override
-        public void documentChanged(DocumentEvent event) {
+        public void documentChanged(@NotNull DocumentEvent event) {
           myAlarm.cancelAllRequests();
           myAlarm.addRequest(() -> ((ImageEditorImpl)viewer.getImageEditor()).setValue(new LightVirtualFile("preview.svg", file.getFileType(), event.getDocument().getText())),
                              500);

java/compiler/impl/src/com/intellij/compiler/server/BuildManager.java

@@ -320,7 +320,7 @@ public class BuildManager implements Disposable {
 
     EditorFactory.getInstance().getEventMulticaster().addDocumentListener(new DocumentListener() {
       @Override
-      public void documentChanged(DocumentEvent e) {
+      public void documentChanged(@NotNull DocumentEvent e) {
         if (Registry.is("compiler.document.save.enabled", true)) {
           final Document document = e.getDocument();
           if (FileDocumentManager.getInstance().isDocumentUnsaved(document)) {

java/debugger/impl/src/com/intellij/debugger/actions/ViewTextAction.java

@@ -101,7 +101,7 @@ public class ViewTextAction extends XFetchValueActionBase {
       myTextViewer = new TextViewer(initialValue, project, myStringNode == null);
       myTextViewer.addDocumentListener(new DocumentListener() {
         @Override
-        public void documentChanged(DocumentEvent e) {
+        public void documentChanged(@NotNull DocumentEvent e) {
           if (e.getNewLength() + e.getOldLength() > 0) {
             getOKAction().setEnabled(true);
           }

java/java-impl/src/com/intellij/codeInsight/completion/JavaMethodCallElement.java

@@ -370,7 +370,7 @@ public class JavaMethodCallElement extends LookupItem<PsiMethod> implements Type
     AtomicInteger maxEditedVariable = new AtomicInteger(-1);
     editor.getDocument().addDocumentListener(new DocumentListener() {
       @Override
-      public void documentChanged(DocumentEvent e) {
+      public void documentChanged(@NotNull DocumentEvent e) {
         maxEditedVariable.set(Math.max(maxEditedVariable.get(), templateState.getCurrentVariableNumber()));
       }
     }, templateState);

java/java-impl/src/com/intellij/codeInspection/java18StreamApi/AddMethodsDialog.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.codeInspection.java18StreamApi;
 
 
@@ -42,8 +28,8 @@ import javax.swing.*;
 import java.awt.*;
 import java.awt.event.ItemEvent;
 import java.awt.event.ItemListener;
-import java.util.*;
 import java.util.List;
+import java.util.*;
 
 /**
  * @author Dmitry Batkovich
@@ -143,7 +129,7 @@ public class AddMethodsDialog extends DialogWrapper {
     });
     myClassNameEditor.addDocumentListener(new DocumentListener() {
       @Override
-      public void documentChanged(DocumentEvent e) {
+      public void documentChanged(@NotNull DocumentEvent e) {
         final String classFqn = e.getDocument().getText();
         final PsiClass aClass = JavaPsiFacade.getInstance(project).findClass(classFqn, GlobalSearchScope.allScope(project));
         final DefaultComboBoxModel comboBoxModel = (DefaultComboBoxModel)myMethodNameCombo.getModel();

java/java-impl/src/com/intellij/ide/util/PackageChooserDialog.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.ide.util;
 
 import com.intellij.CommonBundle;
@@ -180,7 +166,7 @@ public class PackageChooserDialog extends PackageChooser {
     myPathEditor = new EditorTextField(JavaReferenceEditorUtil.createDocument("", myProject, false), myProject, StdFileTypes.JAVA);
     myPathEditor.addDocumentListener(new DocumentListener() {
       @Override
-      public void documentChanged(DocumentEvent e) {
+      public void documentChanged(@NotNull DocumentEvent e) {
         myAlarm.cancelAllRequests();
         myAlarm.addRequest(() -> updateTreeFromPath(), 300);
       }
@@ -212,7 +198,7 @@ public class PackageChooserDialog extends PackageChooser {
   private void updateTreeFromPath() {
     selectPackage(myPathEditor.getText().trim());
   }
-  
+
   private DefaultActionGroup createActionGroup(JComponent component) {
     final DefaultActionGroup group = new DefaultActionGroup();
     final DefaultActionGroup temp = new DefaultActionGroup();

java/java-impl/src/com/intellij/internal/GenerateVisitorByHierarchyAction.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.internal;
 
 import com.intellij.codeInsight.editorActions.SelectWordUtil;
@@ -54,8 +40,8 @@ import org.jetbrains.annotations.NotNull;
 import javax.swing.*;
 import javax.swing.event.DocumentEvent;
 import java.awt.*;
-import java.util.*;
 import java.util.List;
+import java.util.*;
 
 public class GenerateVisitorByHierarchyAction extends AnAction {
 
@@ -117,7 +103,7 @@ public class GenerateVisitorByHierarchyAction extends AnAction {
         labeledComponent.setComponent(editorTextField);
         editorTextField.addDocumentListener(new DocumentListener() {
           @Override
-          public void documentChanged(final com.intellij.openapi.editor.event.DocumentEvent e) {
+          public void documentChanged(@NotNull final com.intellij.openapi.editor.event.DocumentEvent e) {
             parentClassRef.set(null);
             try {
               final PsiType psiType = codeFragment.getType();

java/java-impl/src/com/intellij/refactoring/changeSignature/JavaChangeSignatureDialog.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.refactoring.changeSignature;
 
 import com.intellij.codeInsight.completion.CompletionResultSet;
@@ -215,7 +201,7 @@ public class JavaChangeSignatureDialog extends ChangeSignatureDialogBase<Paramet
     final JavaCodeFragmentTableCellEditor cellEditor = new JavaCodeFragmentTableCellEditor(myProject);
     cellEditor.addDocumentListener(new DocumentListener() {
       @Override
-      public void documentChanged(DocumentEvent e) {
+      public void documentChanged(@NotNull DocumentEvent e) {
         final int row = table.getSelectedRow();
         final int col = table.getSelectedColumn();
         myExceptionsModel.setValueAt(cellEditor.getCellEditorValue(), row, col);
@@ -448,7 +434,7 @@ public class JavaChangeSignatureDialog extends ChangeSignatureDialogBase<Paramet
     }
     return len;
   }
-  
+
   private int getNamesMaxLength() {
     int len = 0;
     for (ParameterTableModelItemBase<ParameterInfoImpl> item : myParametersTableModel.getItems()) {
@@ -456,8 +442,8 @@ public class JavaChangeSignatureDialog extends ChangeSignatureDialogBase<Paramet
       len = Math.max(len, text == null ? 0 : text.length());
     }
     return len;
-  }  
-  
+  }
+
   private int getColumnWidth(int index) {
     int letters = getTypesMaxLength() + (index == 0 ? 1 : getNamesMaxLength() + 2);
     Font font = EditorColorsManager.getInstance().getGlobalScheme().getFont(EditorFontType.PLAIN);
@@ -467,8 +453,8 @@ public class JavaChangeSignatureDialog extends ChangeSignatureDialogBase<Paramet
 
   private int getTypesColumnWidth() {
     return  getColumnWidth(0);
-  }    
-  
+  }
+
   private int getNamesColumnWidth() {
     return getColumnWidth(1);
   }
@@ -481,7 +467,7 @@ public class JavaChangeSignatureDialog extends ChangeSignatureDialogBase<Paramet
     catch (PsiTypeCodeFragment.TypeSyntaxException | PsiTypeCodeFragment.NoTypeException e) {
       return null;
     }
-  }    
+  }
 
   @Override
   protected void customizeParametersTable(TableView<ParameterTableModelItemBase<ParameterInfoImpl>> table) {

java/java-impl/src/com/intellij/refactoring/extractMethodObject/ExtractMethodObjectDialog.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.refactoring.extractMethodObject;
 
 import com.intellij.ide.highlighter.JavaFileType;
@@ -285,7 +271,7 @@ public class ExtractMethodObjectDialog extends DialogWrapper implements Abstract
 
     final DocumentListener nameListener = new DocumentListener() {
       @Override
-      public void documentChanged(final DocumentEvent e) {
+      public void documentChanged(@NotNull final DocumentEvent e) {
         update();
       }
     };

java/java-impl/src/com/intellij/refactoring/extractclass/ExtractClassDialog.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.refactoring.extractclass;
 
 import com.intellij.openapi.help.HelpManager;
@@ -48,8 +34,8 @@ import javax.swing.event.DocumentListener;
 import java.awt.*;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
-import java.util.*;
 import java.util.List;
+import java.util.*;
 
 @SuppressWarnings({"OverridableMethodCallInConstructor"})
 class ExtractClassDialog extends RefactoringDialog implements MemberInfoChangeListener<PsiMember, MemberInfo> {
@@ -85,7 +71,7 @@ class ExtractClassDialog extends RefactoringDialog implements MemberInfoChangeLi
                                                            RefactorJBundle.message("choose.destination.package.label"));
     packageTextField.getChildComponent().getDocument().addDocumentListener(new com.intellij.openapi.editor.event.DocumentListener() {
       @Override
-      public void documentChanged(com.intellij.openapi.editor.event.DocumentEvent e) {
+      public void documentChanged(@NotNull com.intellij.openapi.editor.event.DocumentEvent e) {
         validateButtons();
       }
     });

java/java-impl/src/com/intellij/refactoring/introduceField/IntroduceConstantDialog.java

@@ -1,4 +1,4 @@
-// Copyright 2000-2017 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.refactoring.introduceField;
 
 import com.intellij.codeInsight.AnnotationUtil;
@@ -200,7 +200,7 @@ class IntroduceConstantDialog extends DialogWrapper {
     myTfTargetClassName.getChildComponent().setSelectedItem(myParentClass.getQualifiedName());
     myTfTargetClassName.getChildComponent().addDocumentListener(new DocumentListener() {
       @Override
-      public void documentChanged(DocumentEvent e) {
+      public void documentChanged(@NotNull DocumentEvent e) {
         targetClassChanged();
         enableEnumDependant(introduceEnumConstant());
       }

java/java-impl/src/com/intellij/refactoring/introduceparameterobject/IntroduceParameterObjectDialog.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.refactoring.introduceparameterobject;
 
 import com.intellij.ide.util.TreeJavaClassChooserDialog;
@@ -283,7 +269,7 @@ public class IntroduceParameterObjectDialog extends AbstractIntroduceParameterOb
         final Document document = packageTextField.getChildComponent().getDocument();
     final com.intellij.openapi.editor.event.DocumentListener adapter = new com.intellij.openapi.editor.event.DocumentListener() {
       @Override
-      public void documentChanged(com.intellij.openapi.editor.event.DocumentEvent e) {
+      public void documentChanged(@NotNull com.intellij.openapi.editor.event.DocumentEvent e) {
         validateButtons();
       }
     };
@@ -313,7 +299,7 @@ public class IntroduceParameterObjectDialog extends AbstractIntroduceParameterOb
 
     existingClassField.getChildComponent().getDocument().addDocumentListener(new com.intellij.openapi.editor.event.DocumentListener() {
       @Override
-      public void documentChanged(com.intellij.openapi.editor.event.DocumentEvent e) {
+      public void documentChanged(@NotNull com.intellij.openapi.editor.event.DocumentEvent e) {
         validateButtons();
         enableGenerateAccessors();
       }

java/java-impl/src/com/intellij/refactoring/migration/EditMigrationEntryDialog.java

@@ -1,19 +1,5 @@
 
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.refactoring.migration;
 
 import com.intellij.lang.Language;
@@ -28,6 +14,7 @@ import com.intellij.refactoring.RefactoringBundle;
 import com.intellij.ui.EditorTextField;
 import com.intellij.ui.LanguageTextField;
 import com.intellij.util.ui.JBUI;
+import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
 import javax.swing.*;
@@ -122,7 +109,7 @@ public class EditMigrationEntryDialog extends DialogWrapper{
 
     final DocumentListener documentAdapter = new DocumentListener() {
       @Override
-      public void documentChanged(DocumentEvent e) {
+      public void documentChanged(@NotNull DocumentEvent e) {
         validateOKButton();
       }
     };

java/java-impl/src/com/intellij/refactoring/move/moveClassesOrPackages/DestinationFolderComboBox.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.refactoring.move.moveClassesOrPackages;
 
 import com.intellij.ide.util.DirectoryChooser;
@@ -34,14 +20,15 @@ import com.intellij.psi.search.GlobalSearchScope;
 import com.intellij.refactoring.MoveDestination;
 import com.intellij.refactoring.PackageWrapper;
 import com.intellij.ui.*;
+import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
 import javax.swing.*;
 import java.awt.*;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
-import java.util.*;
 import java.util.List;
+import java.util.*;
 
 public abstract class DestinationFolderComboBox extends ComboboxWithBrowseButton {
   private static final String LEAVE_IN_SAME_SOURCE_ROOT = "Leave in same source root";
@@ -134,7 +121,7 @@ public abstract class DestinationFolderComboBox extends ComboboxWithBrowseButton
 
     editorComboBox.addDocumentListener(new DocumentListener() {
       @Override
-      public void documentChanged(DocumentEvent e) {
+      public void documentChanged(@NotNull DocumentEvent e) {
         JComboBox comboBox = getComboBox();
         DirectoryChooser.ItemWrapper selectedItem = (DirectoryChooser.ItemWrapper)comboBox.getSelectedItem();
         setComboboxModel(comboBox, selectedItem != null && selectedItem != NULL_WRAPPER ? fileIndex.getSourceRootForFile(selectedItem.getDirectory().getVirtualFile()) : initialSourceRoot, selection[0], fileIndex, mySourceRoots, project, false, errorMessageUpdater);

java/java-impl/src/com/intellij/refactoring/move/moveClassesOrPackages/MoveClassesOrPackagesDialog.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.refactoring.move.moveClassesOrPackages;
 
 import com.intellij.lang.Language;
@@ -195,7 +181,7 @@ public class MoveClassesOrPackagesDialog extends MoveDialogBase {
     myInnerClassChooser = new ClassNameReferenceEditor(myProject, null, scope);
     myInnerClassChooser.addDocumentListener(new DocumentListener() {
       @Override
-      public void documentChanged(DocumentEvent e) {
+      public void documentChanged(@NotNull DocumentEvent e) {
         validateButtons();
       }
     });
@@ -227,11 +213,11 @@ public class MoveClassesOrPackagesDialog extends MoveDialogBase {
     final Document document = packageChooser.getChildComponent().getDocument();
     document.addDocumentListener(new DocumentListener() {
       @Override
-      public void documentChanged(DocumentEvent e) {
+      public void documentChanged(@NotNull DocumentEvent e) {
         validateButtons();
       }
     });
-    
+
     return packageChooser;
   }
 
@@ -296,7 +282,7 @@ public class MoveClassesOrPackagesDialog extends MoveDialogBase {
     myCbSearchInComments.setSelected(searchInComments);
     myCbSearchTextOccurences.setSelected(searchForTextOccurences);
 
-    if (initialTargetDirectory != null && 
+    if (initialTargetDirectory != null &&
         JavaMoveClassesOrPackagesHandler.packageHasMultipleDirectoriesInModule(myProject, initialTargetDirectory)) {
       final ProjectFileIndex fileIndex = ProjectRootManager.getInstance(myProject).getFileIndex();
       final Set<VirtualFile> initialRoots = new HashSet<>();

java/java-impl/src/com/intellij/refactoring/move/moveMembers/MoveMembersDialog.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.refactoring.move.moveMembers;
 
 import com.intellij.ide.util.ClassFilter;
@@ -49,6 +35,7 @@ import com.intellij.ui.ReferenceEditorComboWithBrowseButton;
 import com.intellij.usageView.UsageViewUtil;
 import com.intellij.util.IncorrectOperationException;
 import org.jetbrains.annotations.NonNls;
+import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
 import javax.swing.*;
@@ -182,7 +169,7 @@ public class MoveMembersDialog extends MoveDialogBase implements MoveMembersOpti
 
     myTfTargetClassName.getChildComponent().getDocument().addDocumentListener(new DocumentListener() {
       @Override
-      public void documentChanged(DocumentEvent e) {
+      public void documentChanged(@NotNull DocumentEvent e) {
         myMemberInfoModel.updateTargetClass();
         validateButtons();
       }

java/java-impl/src/com/intellij/refactoring/replaceConstructorWithBuilder/ReplaceConstructorWithBuilderDialog.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 
 package com.intellij.refactoring.replaceConstructorWithBuilder;
 
@@ -36,7 +22,6 @@ import com.intellij.psi.*;
 import com.intellij.psi.codeStyle.JavaCodeStyleManager;
 import com.intellij.psi.codeStyle.VariableKind;
 import com.intellij.psi.search.GlobalSearchScope;
-import com.intellij.psi.util.PropertyUtil;
 import com.intellij.psi.util.PropertyUtilBase;
 import com.intellij.refactoring.PackageWrapper;
 import com.intellij.refactoring.RefactoringBundle;
@@ -265,7 +250,7 @@ public class ReplaceConstructorWithBuilderDialog extends RefactoringDialog {
   private void createUIComponents() {
     final DocumentListener adapter = new DocumentListener() {
       @Override
-      public void documentChanged(com.intellij.openapi.editor.event.DocumentEvent e) {
+      public void documentChanged(@NotNull com.intellij.openapi.editor.event.DocumentEvent e) {
         validateButtons();
       }
     };

java/java-impl/src/com/intellij/refactoring/typeMigration/ui/TypeMigrationDialog.java

@@ -1,6 +1,4 @@
-// Copyright 2000-2017 JetBrains s.r.o.
-// Use of this source code is governed by the Apache 2.0 license that can be
-// found in the LICENSE file.
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.refactoring.typeMigration.ui;
 
 import com.intellij.find.FindSettings;
@@ -169,7 +167,7 @@ public abstract class TypeMigrationDialog extends RefactoringDialog {
       myToTypeEditor.setHistory(types != null ? types : new String[]{document.getText()});
       document.addDocumentListener(new DocumentListener() {
         @Override
-        public void documentChanged(final DocumentEvent e) {
+        public void documentChanged(@NotNull final DocumentEvent e) {
           documentManager.commitDocument(document);
           validateButtons();
         }

java/java-impl/src/com/intellij/refactoring/wrapreturnvalue/WrapReturnValueDialog.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.refactoring.wrapreturnvalue;
 
 import com.intellij.ide.util.TreeClassChooser;
@@ -201,7 +187,7 @@ class WrapReturnValueDialog extends RefactoringDialog {
     createNewClassButton.addActionListener(enableListener);
     myCreateInnerClassButton.addActionListener(enableListener);
     toggleRadioEnablement();
-    
+
     final DefaultComboBoxModel model = new DefaultComboBoxModel();
     myFieldsCombo.setModel(model);
     myFieldsCombo.setRenderer(new ListCellRendererWrapper() {
@@ -216,7 +202,7 @@ class WrapReturnValueDialog extends RefactoringDialog {
     });
     existingClassField.getChildComponent().getDocument().addDocumentListener(new com.intellij.openapi.editor.event.DocumentListener() {
       @Override
-      public void documentChanged(com.intellij.openapi.editor.event.DocumentEvent e) {
+      public void documentChanged(@NotNull com.intellij.openapi.editor.event.DocumentEvent e) {
         final JavaPsiFacade facade = JavaPsiFacade.getInstance(myProject);
         final PsiClass currentClass = facade.findClass(existingClassField.getText(), GlobalSearchScope.allScope(myProject));
         if (currentClass != null) {
@@ -271,7 +257,7 @@ class WrapReturnValueDialog extends RefactoringDialog {
   private void createUIComponents() {
     final com.intellij.openapi.editor.event.DocumentListener adapter = new com.intellij.openapi.editor.event.DocumentListener() {
       @Override
-      public void documentChanged(com.intellij.openapi.editor.event.DocumentEvent e) {
+      public void documentChanged(@NotNull com.intellij.openapi.editor.event.DocumentEvent e) {
         validateButtons();
       }
     };

java/java-impl/src/com/intellij/testIntegration/createTest/CreateTestDialog.java

@@ -60,8 +60,8 @@ import java.awt.event.ActionListener;
 import java.awt.event.InputEvent;
 import java.awt.event.KeyEvent;
 import java.io.IOException;
-import java.util.*;
 import java.util.List;
+import java.util.*;
 
 public class CreateTestDialog extends DialogWrapper {
   private static final String RECENTS_KEY = "CreateTestDialog.RecentsKey";
@@ -227,9 +227,9 @@ public class CreateTestDialog extends DialogWrapper {
 
     constr.fill = GridBagConstraints.HORIZONTAL;
     constr.anchor = GridBagConstraints.WEST;
-    
+
     int gridy = 1;
-    
+
     constr.insets = insets(4);
     constr.gridy = gridy++;
     constr.gridx = 0;
@@ -266,7 +266,7 @@ public class CreateTestDialog extends DialogWrapper {
     myTargetClassNameField = new EditorTextField(suggestTestClassName(myTargetClass));
     myTargetClassNameField.getDocument().addDocumentListener(new DocumentListener() {
       @Override
-      public void documentChanged(DocumentEvent e) {
+      public void documentChanged(@NotNull DocumentEvent e) {
         getOKAction().setEnabled(PsiNameHelper.getInstance(myProject).isIdentifier(getClassName()));
       }
     });

java/java-impl/src/com/intellij/unscramble/ThreadDumpPanel.java

@@ -145,7 +145,7 @@ public class ThreadDumpPanel extends JPanel implements DataProvider {
     if (editor != null) {
       editor.getDocument().addDocumentListener(new DocumentListener() {
         @Override
-        public void documentChanged(com.intellij.openapi.editor.event.DocumentEvent e) {
+        public void documentChanged(@NotNull com.intellij.openapi.editor.event.DocumentEvent e) {
           String filter = myFilterField.getText();
           if (StringUtil.isNotEmpty(filter)) {
             highlightOccurrences(filter, project, editor);

java/java-tests/testSrc/com/intellij/java/codeInsight/completion/JavaAutoPopupTest.groovy

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.java.codeInsight.completion
 
 import com.intellij.codeInsight.CodeInsightSettings
@@ -53,7 +39,10 @@ import com.intellij.openapi.fileEditor.FileEditorManager
 import com.intellij.openapi.progress.ProgressManager
 import com.intellij.openapi.util.Computable
 import com.intellij.openapi.util.Disposer
-import com.intellij.psi.*
+import com.intellij.psi.NavigatablePsiElement
+import com.intellij.psi.PsiClass
+import com.intellij.psi.PsiJavaFile
+import com.intellij.psi.PsiMethod
 import com.intellij.psi.statistics.StatisticsManager
 import com.intellij.psi.statistics.impl.StatisticsManagerImpl
 import com.intellij.testFramework.fixtures.CodeInsightTestUtil
@@ -991,7 +980,7 @@ class Foo {
         myFixture.configureByText("$a1 $a2 .java", src)
         myFixture.editor.document.addDocumentListener(new DocumentListener() {
           @Override
-          void documentChanged(DocumentEvent e) {
+          void documentChanged(@NotNull DocumentEvent e) {
             if (e.newFragment.toString().contains("a")) {
               fail(e.toString())
             }
@@ -1235,7 +1224,7 @@ public class Test {
     JavaCodeContextType contextType = ContainerUtil.findInstance(TemplateContextType.EP_NAME.getExtensions(), JavaCodeContextType.Statement)
     ((TemplateImpl)template).templateContext.setEnabled(contextType, true)
     CodeInsightTestUtil.addTemplate(template, myFixture.testRootDisposable)
-    
+
     LiveTemplateCompletionContributor.setShowTemplatesInTests(true, myFixture.testRootDisposable)
     myFixture.configureByText("a.java", """
 public class Test {
@@ -1694,7 +1683,7 @@ class Cls {
   }
   void mySout() {}
 }
-""" 
+"""
     type('sout')
     myFixture.assertPreferredCompletionItems 0, 'sout', 'mySout'
   }
@@ -1723,7 +1712,7 @@ class Cls {
   }
   void mySout() {}
 }
-""" 
+"""
     type('sout')
     assert lookup
     assert 'sout' in myFixture.lookupElementStrings
@@ -1751,7 +1740,7 @@ class Cls {
       ContainerUtil.findInstance(TemplateContextType.EP_NAME.getExtensions(), JavaCodeContextType.Statement)
     ((TemplateImpl)template).getTemplateContext().setEnabled(contextType, true)
     CodeInsightTestUtil.addTemplate(template, myFixture.testRootDisposable)
-    
+
     myFixture.configureByText 'a.java', '''
 class Foo {
  int tplMn;
@@ -1801,7 +1790,7 @@ ita<caret>
 """
     type 'r'
     assert lookup == null
-    
+
     LiveTemplateCompletionContributor.setShowTemplatesInTests(true, myFixture.getTestRootDisposable())
     type '\br'
     assert lookup

java/java-tests/testSrc/com/intellij/psi/impl/smartPointers/SmartPsiElementPointersTest.java

@@ -279,7 +279,7 @@ public class SmartPsiElementPointersTest extends CodeInsightTestCase {
     int offset = aClass.getTextOffset();
     DocumentListener listener = new DocumentListener() {
       @Override
-      public void beforeDocumentChange(DocumentEvent event) {
+      public void beforeDocumentChange(@NotNull DocumentEvent event) {
         pointer[0] = createPointer(aClass);
       }
     };
@@ -634,14 +634,14 @@ public class SmartPsiElementPointersTest extends CodeInsightTestCase {
     assertEquals(range1, pointer2.getRange());
     assertNotNull(node);
   }
-  
+
   public void testEqualPointersWhenCreatedFromStubAndAST() {
     PsiJavaFile file = (PsiJavaFile)myJavaFacade.findClass("AClass", GlobalSearchScope.allScope(getProject())).getContainingFile();
 
     int hash1 = file.getClasses()[0].hashCode();
     final SmartPsiElementPointer<PsiClass> pointer1 = createPointer(file.getClasses()[0]);
     assertNotNull(((PsiFileImpl)file).getStubTree());
-    
+
     PlatformTestUtil.tryGcSoftlyReachableObjects();
 
     final FileASTNode node = file.getNode();
@@ -736,7 +736,7 @@ public class SmartPsiElementPointersTest extends CodeInsightTestCase {
     PsiDocumentManager.getInstance(myProject).commitAllDocuments();
     assertEquals(TextRange.create(2, 3), pointer.getRange());
   }
-  
+
   public void testUpdateAfterInsertingIdenticalText() {
     PsiJavaFile file = (PsiJavaFile)configureByText(StdFileTypes.JAVA, "class Foo {\n" +
                                                                        "    void m() {\n" +
@@ -925,7 +925,7 @@ public class SmartPsiElementPointersTest extends CodeInsightTestCase {
     PsiJavaFile file = (PsiJavaFile)createFile("a.java", "import foo.Bar;\nclass Foo {}");
     SmartPointerEx<PsiImportList> pointer = createPointer(file.getImportList());
     Document document = file.getViewProvider().getDocument();
-    
+
     WriteCommandAction.runWriteCommandAction(myProject, () -> {
       document.insertString(document.getText().indexOf("class"), "import foo.Goo;\n");
       PsiDocumentManager.getInstance(myProject).commitAllDocuments();
@@ -953,7 +953,7 @@ public class SmartPsiElementPointersTest extends CodeInsightTestCase {
 
     assertTrue(psiFile.isValid());
     assertEquals(((PsiJavaFile)psiFile).getClasses()[0], pointer.getElement());
-    
+
     assertFalse(((PsiFileImpl)psiFile).isContentsLoaded());
   }
 
@@ -974,7 +974,7 @@ public class SmartPsiElementPointersTest extends CodeInsightTestCase {
     PsiJavaFileImpl file = (PsiJavaFileImpl)createFile("a.java", "class A {}");
     assertNotNull(file.getNode());
     SmartPointerEx<PsiClass> pointer = createPointer(file.getClasses()[0]);
-    
+
     PlatformTestUtil.tryGcSoftlyReachableObjects();
     assertNull(file.getTreeElement());
 
@@ -1008,14 +1008,14 @@ public class SmartPsiElementPointersTest extends CodeInsightTestCase {
     PsiFile file = createFile("a.java", "abc");
     SmartPsiFileRange pointer = getPointerManager().createSmartPsiFileRangePointer(file, TextRange.from(0, 1));
     assertInstanceOf(pointer.getElement(), PsiJavaFile.class);
-    
+
     WriteCommandAction.runWriteCommandAction(myProject, () -> {
       Document document = file.getViewProvider().getDocument();
       file.setName("a.txt");
       document.insertString(0, "ddd");
       PsiDocumentManager.getInstance(myProject).commitAllDocuments();
     });
-    
+
     assertInstanceOf(pointer.getElement(), PsiPlainTextFile.class);
     assertEquals(TextRange.from(3, 1), TextRange.create(pointer.getRange()));
   }

platform/core-api/src/com/intellij/openapi/editor/event/DocumentListener.java

@@ -1,21 +1,8 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.openapi.editor.event;
 
 import com.intellij.util.ArrayFactory;
+import org.jetbrains.annotations.NotNull;
 
 import java.util.EventListener;
 
@@ -36,7 +23,7 @@ public interface DocumentListener extends EventListener{
    *
    * @param event the event containing the information about the change.
    */
-  default void beforeDocumentChange(DocumentEvent event) {
+  default void beforeDocumentChange(@NotNull DocumentEvent event) {
   }
 
   /**
@@ -44,6 +31,6 @@ public interface DocumentListener extends EventListener{
    *
    * @param event the event containing the information about the change.
    */
-  default void documentChanged(DocumentEvent event) {
+  default void documentChanged(@NotNull DocumentEvent event) {
   }
 }

platform/core-impl/src/com/intellij/codeInsight/completion/OffsetTranslator.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.codeInsight.completion;
 
 import com.intellij.openapi.Disposable;
@@ -24,6 +10,7 @@ import com.intellij.openapi.util.Disposer;
 import com.intellij.openapi.util.Key;
 import com.intellij.psi.PsiFile;
 import com.intellij.psi.util.PsiModificationTracker;
+import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
 import java.util.LinkedList;
@@ -48,7 +35,7 @@ class OffsetTranslator implements Disposable {
     final LinkedList<DocumentEvent> sinceCommit = new LinkedList<>();
     originalDocument.addDocumentListener(new DocumentListener() {
       @Override
-      public void documentChanged(DocumentEvent e) {
+      public void documentChanged(@NotNull DocumentEvent e) {
         if (isUpToDate()) {
           DocumentEventImpl inverse =
             new DocumentEventImpl(originalDocument, e.getOffset(), e.getNewFragment(), e.getOldFragment(), 0, false);
@@ -56,7 +43,7 @@ class OffsetTranslator implements Disposable {
         }
       }
     }, this);
-    
+
     originalFile.getProject().getMessageBus().connect(this).subscribe(PsiModificationTracker.TOPIC, new PsiModificationTracker.Listener() {
       long lastModCount = originalFile.getViewProvider().getModificationStamp();
       @Override

platform/core-impl/src/com/intellij/openapi/editor/impl/RangeMarkerTree.java

@@ -34,7 +34,7 @@ class RangeMarkerTree<T extends RangeMarkerEx> extends IntervalTreeImpl<T> imple
   }
 
   @Override
-  public void documentChanged(DocumentEvent event) {
+  public void documentChanged(@NotNull DocumentEvent event) {
     updateMarkersOnChange(event);
   }
 
@@ -57,8 +57,8 @@ class RangeMarkerTree<T extends RangeMarkerEx> extends IntervalTreeImpl<T> imple
 
     boolean stickyR1 = o1.isStickingToRight();
     boolean stickyR2 = o2.isStickingToRight();
-    if (stickyR1 != stickyR2) return stickyR1 ? -1 : 1; 
-                                     
+    if (stickyR1 != stickyR2) return stickyR1 ? -1 : 1;
+
     return 0;
   }
 
@@ -69,7 +69,7 @@ class RangeMarkerTree<T extends RangeMarkerEx> extends IntervalTreeImpl<T> imple
   private static final int DUPLICATE_LIMIT = 30; // assertion: no more than DUPLICATE_LIMIT range markers are allowed to be registered at given (start, end)
   @NotNull
   @Override
-  public RMNode<T> addInterval(@NotNull T interval, int start, int end, 
+  public RMNode<T> addInterval(@NotNull T interval, int start, int end,
                                boolean greedyToLeft, boolean greedyToRight, boolean stickingToRight, int layer) {
     ((RangeMarkerImpl)interval).setValid(true);
     RMNode<T> node = (RMNode<T>)super.addInterval(interval, start, end, greedyToLeft, greedyToRight, stickingToRight, layer);
@@ -104,7 +104,7 @@ class RangeMarkerTree<T extends RangeMarkerEx> extends IntervalTreeImpl<T> imple
 
   @NotNull
   @Override
-  protected RMNode<T> createNewNode(@NotNull T key, int start, int end, 
+  protected RMNode<T> createNewNode(@NotNull T key, int start, int end,
                                     boolean greedyToLeft, boolean greedyToRight, boolean stickingToRight, int layer) {
     return new RMNode<>(this, key, start, end, greedyToLeft, greedyToRight, stickingToRight);
   }

platform/core-impl/src/com/intellij/psi/impl/PsiDocumentManagerBase.java

@@ -800,7 +800,7 @@ public abstract class PsiDocumentManagerBase extends PsiDocumentManager implemen
   }
 
   @Override
-  public void documentChanged(DocumentEvent event) {
+  public void documentChanged(@NotNull DocumentEvent event) {
     if (myStopTrackingDocuments || myProject.isDisposed()) return;
 
     final Document document = event.getDocument();

platform/diff-impl/src/com/intellij/diff/actions/DocumentsSynchronizer.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.diff.actions;
 
 import com.intellij.openapi.application.ApplicationManager;
@@ -36,7 +22,7 @@ abstract class DocumentsSynchronizer {
 
   private final DocumentListener myListener1 = new DocumentListener() {
     @Override
-    public void documentChanged(DocumentEvent e) {
+    public void documentChanged(@NotNull DocumentEvent e) {
       if (myDuringModification) return;
       onDocumentChanged1(e);
     }
@@ -44,7 +30,7 @@ abstract class DocumentsSynchronizer {
 
   private final DocumentListener myListener2 = new DocumentListener() {
     @Override
-    public void documentChanged(DocumentEvent e) {
+    public void documentChanged(@NotNull DocumentEvent e) {
       if (myDuringModification) return;
       onDocumentChanged2(e);
     }

platform/diff-impl/src/com/intellij/diff/merge/MergeModelBase.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.diff.merge;
 
 import com.intellij.diff.util.DiffUtil;
@@ -185,7 +171,7 @@ public abstract class MergeModelBase<S extends MergeModelBase.State> implements
 
   private class MyDocumentListener implements DocumentListener {
     @Override
-    public void beforeDocumentChange(DocumentEvent e) {
+    public void beforeDocumentChange(@NotNull DocumentEvent e) {
       if (isDisposed()) return;
       enterBulkChangeUpdateBlock();
 
@@ -211,7 +197,7 @@ public abstract class MergeModelBase<S extends MergeModelBase.State> implements
     }
 
     @Override
-    public void documentChanged(DocumentEvent e) {
+    public void documentChanged(@NotNull DocumentEvent e) {
       if (isDisposed()) return;
       exitBulkChangeUpdateBlock();
     }

platform/diff-impl/src/com/intellij/diff/tools/fragmented/UnifiedDiffViewer.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.diff.tools.fragmented;
 
 import com.intellij.diff.DiffContext;
@@ -540,7 +526,7 @@ public class UnifiedDiffViewer extends ListenerDiffViewerBase {
 
   private class MyOnesideDocumentListener implements DocumentListener {
     @Override
-    public void beforeDocumentChange(DocumentEvent e) {
+    public void beforeDocumentChange(@NotNull DocumentEvent e) {
       if (myDuringOnesideDocumentModification) return;
       if (myChangedBlockData == null) {
         LOG.warn("oneside beforeDocumentChange - myChangedBlockData == null");

platform/diff-impl/src/com/intellij/diff/tools/util/FoldingModelSupport.java

@@ -30,8 +30,8 @@ import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
 import java.awt.*;
-import java.util.*;
 import java.util.List;
+import java.util.*;
 
 import static com.intellij.diff.util.DiffUtil.getLineCount;
 import static com.intellij.util.ArrayUtil.toObjectArray;
@@ -256,7 +256,7 @@ public class FoldingModelSupport {
 
   private class MyDocumentListener implements DocumentListener {
     @Override
-    public void documentChanged(DocumentEvent e) {
+    public void documentChanged(@NotNull DocumentEvent e) {
       if (StringUtil.indexOf(e.getOldFragment(), '\n') != -1 ||
           StringUtil.indexOf(e.getNewFragment(), '\n') != -1) {
         for (int i = 0; i < myCount; i++) {

platform/diff-impl/src/com/intellij/diff/tools/util/base/ListenerDiffViewerBase.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.diff.tools.util.base;
 
 import com.intellij.diff.DiffContext;
@@ -53,12 +39,12 @@ public abstract class ListenerDiffViewerBase extends DiffViewerBase {
   protected DocumentListener createDocumentListener() {
     return new DocumentListener() {
       @Override
-      public void beforeDocumentChange(DocumentEvent event) {
+      public void beforeDocumentChange(@NotNull DocumentEvent event) {
         onBeforeDocumentChange(event);
       }
 
       @Override
-      public void documentChanged(DocumentEvent event) {
+      public void documentChanged(@NotNull DocumentEvent event) {
         onDocumentChange(event);
       }
     };

platform/dvcs-impl/src/com/intellij/dvcs/ui/CloneDvcsDialog.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.dvcs.ui;
 
 import com.intellij.codeInsight.hint.HintManager;
@@ -217,13 +203,13 @@ public abstract class CloneDvcsDialog extends DialogWrapper {
 
     myRepositoryUrlField.addDocumentListener(new DocumentListener() {
       @Override
-      public void documentChanged(com.intellij.openapi.editor.event.DocumentEvent event) {
+      public void documentChanged(@NotNull com.intellij.openapi.editor.event.DocumentEvent event) {
         myDirectoryField.trySetChildPath(defaultDirectoryName(myRepositoryUrlField.getText().trim()));
       }
     });
     myRepositoryUrlField.addDocumentListener(new DocumentListener() {
       @Override
-      public void documentChanged(com.intellij.openapi.editor.event.DocumentEvent event) {
+      public void documentChanged(@NotNull com.intellij.openapi.editor.event.DocumentEvent event) {
         myRepositoryTestValidationInfo = null;
       }
     });

platform/editor-ui-ex/src/com/intellij/openapi/editor/ex/util/LayeredLexerEditorHighlighter.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2016 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 
 package com.intellij.openapi.editor.ex.util;
 
@@ -164,12 +150,12 @@ public class LayeredLexerEditorHighlighter extends LexerEditorHighlighter {
   }
 
   protected boolean updateLayers() { return false; }
-  
+
   protected boolean updateLayers(@NotNull DocumentEvent e) { return updateLayers(); }
 
   @SuppressWarnings("NonSynchronizedMethodOverridesSynchronizedMethod")
   @Override
-  public void documentChanged(DocumentEvent e) {
+  public void documentChanged(@NotNull DocumentEvent e) {
     // do NOT synchronize before updateLayers due to deadlock with PsiLock
     boolean changed = updateLayers(e);
 

platform/editor-ui-ex/src/com/intellij/openapi/editor/ex/util/LexerEditorHighlighter.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.openapi.editor.ex.util;
 
 import com.intellij.lexer.FlexAdapter;
@@ -137,7 +123,7 @@ public class LexerEditorHighlighter implements EditorHighlighter, PrioritizedDoc
     Project project = myEditor.getProject();
     return project != null && !project.isDisposed();
   }
-  
+
   private boolean isInSyncWithDocument() {
     Document document = getDocument();
     return document == null || document.getTextLength() == 0 || mySegments.getSegmentCount() > 0;
@@ -152,7 +138,7 @@ public class LexerEditorHighlighter implements EditorHighlighter, PrioritizedDoc
   }
 
   @Override
-  public synchronized void documentChanged(DocumentEvent e) {
+  public synchronized void documentChanged(@NotNull DocumentEvent e) {
     try {
       final Document document = e.getDocument();
       CharSequence text = document.getImmutableCharSequence();
@@ -389,7 +375,7 @@ public class LexerEditorHighlighter implements EditorHighlighter, PrioritizedDoc
       myLexer.advance();
     }
     processor.finish();
-    
+
     if (textLength > 0 && (mySegments.mySegmentCount == 0 || mySegments.myEnds[mySegments.mySegmentCount - 1] != textLength)) {
       throw new IllegalStateException("Unexpected termination offset for lexer " + myLexer);
     }

platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/project/autoimport/ExternalSystemProjectsWatcherImpl.java

@@ -1,6 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.openapi.externalSystem.service.project.autoimport;
 
 import com.intellij.ProjectTopics;
@@ -47,7 +45,7 @@ import com.intellij.openapi.vfs.newvfs.events.VFileContentChangeEvent;
 import com.intellij.openapi.vfs.newvfs.events.VFileEvent;
 import com.intellij.openapi.vfs.pointers.VirtualFilePointer;
 import com.intellij.openapi.vfs.pointers.VirtualFilePointerManager;
-import com.intellij.psi.*;
+import com.intellij.psi.PsiDocumentManager;
 import com.intellij.util.PathUtil;
 import com.intellij.util.SmartList;
 import com.intellij.util.containers.ContainerUtil;
@@ -169,7 +167,7 @@ public class ExternalSystemProjectsWatcherImpl extends ExternalSystemTaskNotific
 
     DocumentListener myDocumentListener = new DocumentListener() {
       @Override
-      public void documentChanged(DocumentEvent event) {
+      public void documentChanged(@NotNull DocumentEvent event) {
         Document doc = event.getDocument();
         VirtualFile file = FileDocumentManager.getInstance().getFile(doc);
         if (file == null) return;
@@ -451,7 +449,7 @@ public class ExternalSystemProjectsWatcherImpl extends ExternalSystemTaskNotific
 
       multicaster.addDocumentListener(new DocumentListener() {
         @Override
-        public void documentChanged(DocumentEvent event) {
+        public void documentChanged(@NotNull DocumentEvent event) {
           mergingUpdateQueue.restartTimer();
         }
       }, mergingUpdateQueue);

platform/lang-impl/src/com/intellij/application/options/codeStyle/arrangement/match/ArrangementSectionRulesControl.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2014 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.application.options.codeStyle.arrangement.match;
 
 import com.intellij.application.options.codeStyle.arrangement.ArrangementConstants;
@@ -29,7 +15,8 @@ import com.intellij.psi.codeStyle.arrangement.model.ArrangementAtomMatchConditio
 import com.intellij.psi.codeStyle.arrangement.model.ArrangementCompositeMatchCondition;
 import com.intellij.psi.codeStyle.arrangement.model.ArrangementMatchCondition;
 import com.intellij.psi.codeStyle.arrangement.model.ArrangementMatchConditionVisitor;
-import com.intellij.psi.codeStyle.arrangement.std.*;
+import com.intellij.psi.codeStyle.arrangement.std.ArrangementStandardSettingsManager;
+import com.intellij.psi.codeStyle.arrangement.std.StdArrangementRuleAliasToken;
 import com.intellij.util.containers.ContainerUtil;
 import gnu.trove.THashSet;
 import org.jetbrains.annotations.NotNull;
@@ -172,6 +159,7 @@ public class ArrangementSectionRulesControl extends ArrangementMatchingRulesCont
     }
   }
 
+  @Override
   public void showEditor(int rowToEdit) {
     if (mySectionRuleManager != null && mySectionRuleManager.isSectionRule(getModel().getElementAt(rowToEdit))) {
       mySectionRuleManager.showEditor(rowToEdit);

platform/lang-impl/src/com/intellij/application/options/codeStyle/arrangement/match/ArrangementSectionRulesValidator.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2014 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.application.options.codeStyle.arrangement.match;
 
 import com.intellij.openapi.application.ApplicationBundle;
@@ -35,6 +21,7 @@ public class ArrangementSectionRulesValidator extends ArrangementMatchingRulesVa
     mySectionRuleManager = sectionRuleManager;
   }
 
+  @Override
   @Nullable
   protected String validate(int index) {
     if (myRulesModel.getSize() < index) {

platform/lang-impl/src/com/intellij/application/options/colors/ColorAndFontDescriptionPanel.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2016 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.application.options.colors;
 
 import com.intellij.openapi.application.ApplicationBundle;
@@ -131,6 +117,7 @@ public class ColorAndFontDescriptionPanel extends JPanel implements OptionsPanel
     return this;
   }
 
+  @Override
   public void resetDefault() {
     try {
       myUiEventsEnabled = false;
@@ -168,6 +155,7 @@ public class ColorAndFontDescriptionPanel extends JPanel implements OptionsPanel
     colorPanel.setEnabled(isChecked);
   }
 
+  @Override
   public void reset(@NotNull EditorSchemeAttributeDescriptor attrDescription) {
     try {
       myUiEventsEnabled = false;
@@ -266,6 +254,7 @@ public class ColorAndFontDescriptionPanel extends JPanel implements OptionsPanel
     myBackgroundChooser.setEditable(isEditEnabled);
   }
 
+  @Override
   public void apply(@NotNull EditorSchemeAttributeDescriptor attrDescription, EditorColorsScheme scheme) {
     if (!(attrDescription instanceof ColorAndFontDescription)) return;
     ColorAndFontDescription description = (ColorAndFontDescription)attrDescription;

platform/lang-impl/src/com/intellij/application/options/colors/FontOptions.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 
 package com.intellij.application.options.colors;
 
@@ -155,6 +141,7 @@ public class FontOptions extends AbstractFontOptionsPanel {
     }
   }
 
+  @Override
   protected void setDelegatingPreferences(boolean isDelegating) {
     FontPreferences currPrefs = getCurrentScheme().getFontPreferences();
     if (currPrefs instanceof DelegatingFontPreferences == isDelegating) return;

platform/lang-impl/src/com/intellij/application/options/colors/OptionsPanelImpl.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2015 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 
 package com.intellij.application.options.colors;
 
@@ -221,7 +207,8 @@ public class OptionsPanelImpl extends JPanel implements OptionsPanel {
       void onHyperLinkClicked(HyperlinkEvent e);
     }
   }
-  
+
+  @Override
   public void setEmptyText(@NotNull String text, @Nullable ActionListener linkListener) {
     myOptionsTree.setEmptyText(text, linkListener);
   }

platform/lang-impl/src/com/intellij/build/ExecutionNodeProgressAnimator.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.build;
 
 import com.intellij.icons.AllIcons;
@@ -67,6 +53,7 @@ public class ExecutionNodeProgressAnimator implements Runnable, Disposable {
     return FRAMES[getCurrentFrameIndex()];
   }
 
+  @Override
   public void run() {
     if (!myNodes.isEmpty()) {
       final long time = System.currentTimeMillis();
@@ -100,6 +87,7 @@ public class ExecutionNodeProgressAnimator implements Runnable, Disposable {
     cancelAlarm();
   }
 
+  @Override
   public void dispose() {
     myTreeView = null;
     myNodes.clear();

platform/lang-impl/src/com/intellij/build/events/impl/AbstractBuildEvent.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.build.events.impl;
 
 import com.intellij.build.events.BuildEvent;
@@ -66,6 +52,7 @@ public abstract class AbstractBuildEvent implements BuildEvent {
     return myMessage;
   }
 
+  @Override
   @Nullable
   public String getHint() {
     return myHint;

platform/lang-impl/src/com/intellij/codeInsight/TargetElementEvaluatorEx2.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2015 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.codeInsight;
 
 import com.intellij.openapi.editor.Editor;
@@ -29,18 +15,18 @@ import java.util.Collection;
 /**
  * Advanced customization interface used in {@link TargetElementUtil} class to support specifics of various languages.
  * The exact API is not documented and is subject to change.
- * Please refer to {@link TargetElementUtil} for additional information.  
+ * Please refer to {@link TargetElementUtil} for additional information.
  */
 public abstract class TargetElementEvaluatorEx2 implements TargetElementEvaluator {
-  @Nullable 
+  @Nullable
   public PsiElement getNamedElement(@NotNull PsiElement element) {
     return null;
   }
-  
+
   public boolean isAcceptableNamedParent(@NotNull PsiElement parent) {
     return true;
   }
-                   
+
   @Nullable
   public PsiElement adjustElement(Editor editor, int flags, @Nullable PsiElement element, @Nullable PsiElement contextElement) {
     return element;
@@ -62,7 +48,7 @@ public abstract class TargetElementEvaluatorEx2 implements TargetElementEvaluato
 
   @Nullable
   public PsiElement adjustReference(@NotNull PsiReference ref) {
-    return null; 
+    return null;
   }
 
   @Nullable
@@ -80,12 +66,13 @@ public abstract class TargetElementEvaluatorEx2 implements TargetElementEvaluato
     return ThreeState.UNSURE;
   }
 
+  @Override
   public boolean includeSelfInGotoImplementation(@NotNull final PsiElement element) {
     return true;
   }
-  
+
   public boolean acceptImplementationForReference(@Nullable PsiReference reference, @NotNull PsiElement element) {
-    return true;  
+    return true;
   }
 
   /**

platform/lang-impl/src/com/intellij/codeInsight/actions/LayoutCodeDialog.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2012 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 
 package com.intellij.codeInsight.actions;
 
@@ -74,6 +60,7 @@ public class LayoutCodeDialog extends DialogWrapper {
     init();
   }
 
+  @Override
   protected void init() {
     super.init();
 

platform/lang-impl/src/com/intellij/codeInsight/actions/LayoutProjectCodeDialog.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2011 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 
 package com.intellij.codeInsight.actions;
 
@@ -201,10 +187,12 @@ public class LayoutProjectCodeDialog extends DialogWrapper implements ReformatFi
     }
   }
 
+  @Override
   public boolean isOptimizeImports() {
     return myCbOptimizeImports.isSelected();
   }
 
+  @Override
   @Nullable
   public String getFileTypeMask() {
     if (myEnableFileNameFilterCb.isSelected()) {

platform/lang-impl/src/com/intellij/codeInsight/completion/ActionTracker.java

@@ -44,7 +44,7 @@ class ActionTracker {
     });
     myEditor.getDocument().addDocumentListener(new DocumentListener() {
       @Override
-      public void documentChanged(DocumentEvent e) {
+      public void documentChanged(@NotNull DocumentEvent e) {
         if (!myIgnoreDocumentChanges) {
           myActionsHappened = true;
         }

platform/lang-impl/src/com/intellij/codeInsight/completion/AddSpaceInsertHandler.java

@@ -30,6 +30,7 @@ public class AddSpaceInsertHandler implements InsertHandler<LookupElement> {
     myTriggerAutoPopup = triggerAutoPopup;
   }
 
+  @Override
   public void handleInsert(@NotNull InsertionContext context, @NotNull LookupElement item) {
     Editor editor = context.getEditor();
     char completionChar = context.getCompletionChar();

platform/lang-impl/src/com/intellij/codeInsight/completion/CompletionPhase.java

@@ -163,7 +163,7 @@ public abstract class CompletionPhase implements Disposable {
       };
       final DocumentListener documentListener = new DocumentListener() {
         @Override
-        public void beforeDocumentChange(DocumentEvent e) {
+        public void beforeDocumentChange(@NotNull DocumentEvent e) {
           CompletionServiceImpl.setCompletionPhase(NoCompletion);
         }
       };

platform/lang-impl/src/com/intellij/codeInsight/completion/CompletionThreading.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2016 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.codeInsight.completion;
 
 import com.intellij.openapi.application.ApplicationManager;
@@ -79,6 +65,7 @@ class SyncCompletion extends CompletionThreadingBase {
     };
   }
 
+  @Override
   protected void flushBatchResult(CompletionProgressIndicator indicator) {
     try {
       indicator.withSingleUpdate(() -> {
@@ -162,6 +149,7 @@ class AsyncCompletion extends CompletionThreadingBase {
     };
   }
 
+  @Override
   protected void flushBatchResult(CompletionProgressIndicator indicator) {
     ArrayList<CompletionResult> batchListCopy = new ArrayList<>(myBatchList);
     myBatchList.clear();

platform/lang-impl/src/com/intellij/codeInsight/completion/RangeMarkerSpy.java

@@ -1,23 +1,10 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.codeInsight.completion;
 
 import com.intellij.openapi.editor.RangeMarker;
 import com.intellij.openapi.editor.event.DocumentEvent;
 import com.intellij.openapi.editor.event.DocumentListener;
+import org.jetbrains.annotations.NotNull;
 
 /**
  * @author peter
@@ -33,7 +20,7 @@ public abstract class RangeMarkerSpy implements DocumentListener {
   protected abstract void invalidated(DocumentEvent e);
 
   @Override
-  public void documentChanged(DocumentEvent e) {
+  public void documentChanged(@NotNull DocumentEvent e) {
     if (!myMarker.isValid()) {
       invalidated(e);
     }

platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/DaemonListeners.java

@@ -162,7 +162,7 @@ public class DaemonListeners implements Disposable {
     eventMulticaster.addDocumentListener(new DocumentListener() {
       // clearing highlighters before changing document because change can damage editor highlighters drastically, so we'll clear more than necessary
       @Override
-      public void beforeDocumentChange(final DocumentEvent e) {
+      public void beforeDocumentChange(@NotNull final DocumentEvent e) {
         Document document = e.getDocument();
         VirtualFile virtualFile = fileDocumentManager.getFile(document);
         Project project = virtualFile == null ? null : ProjectUtil.guessProjectForFile(virtualFile);

platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/PsiChangeHandler.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 
 package com.intellij.codeInsight.daemon.impl;
 
@@ -69,7 +55,7 @@ class PsiChangeHandler extends PsiTreeChangeAdapter implements Disposable {
     myFileStatusMap = fileStatusMap;
     editorFactory.getEventMulticaster().addDocumentListener(new DocumentListener() {
       @Override
-      public void beforeDocumentChange(DocumentEvent e) {
+      public void beforeDocumentChange(@NotNull DocumentEvent e) {
         final Document document = e.getDocument();
         if (documentManager.getSynchronizer().isInSynchronization(document)) return;
         if (documentManager.getCachedPsiFile(document) == null) return;

platform/lang-impl/src/com/intellij/codeInsight/documentation/QuickDocOnMouseOverManager.java

@@ -403,7 +403,7 @@ public class QuickDocOnMouseOverManager {
 
   private class MyDocumentListener implements DocumentListener {
     @Override
-    public void documentChanged(DocumentEvent e) {
+    public void documentChanged(@NotNull DocumentEvent e) {
       Editor editor = getEditor();
       if (editor == null || editor.getDocument() == e.getDocument()) {
         closeQuickDocIfPossible();

platform/lang-impl/src/com/intellij/codeInsight/editorActions/AutoHardWrapHandler.java

@@ -1,4 +1,4 @@
-// Copyright 2000-2017 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.codeInsight.editorActions;
 
 import com.intellij.codeInsight.template.TemplateManager;
@@ -153,7 +153,7 @@ public class AutoHardWrapHandler {
     if (wrapOffset < 0) {
       return;
     }
-    
+
     WhiteSpaceFormattingStrategy formattingStrategy = WhiteSpaceFormattingStrategyFactory.getStrategy(editor);
     if (wrapOffset <= startOffset || wrapOffset > maxPreferredOffset
         || formattingStrategy.check(document.getCharsSequence(), startOffset, wrapOffset) >= wrapOffset)
@@ -168,7 +168,7 @@ public class AutoHardWrapHandler {
     final int baseCaretOffset = caretModel.getOffset();
     DocumentListener listener = new DocumentListener() {
       @Override
-      public void beforeDocumentChange(DocumentEvent event) {
+      public void beforeDocumentChange(@NotNull DocumentEvent event) {
         if (event.getOffset() < baseCaretOffset + caretOffsetDiff[0]) {
           caretOffsetDiff[0] += event.getNewLength() - event.getOldLength();
         }

platform/lang-impl/src/com/intellij/codeInsight/editorActions/MatchBraceAction.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2014 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.codeInsight.editorActions;
 
 import com.intellij.codeInsight.highlighting.BraceMatchingUtil;
@@ -45,6 +31,7 @@ public class MatchBraceAction extends EditorAction {
       super(true);
     }
 
+    @Override
     public void execute(@NotNull Editor editor, DataContext dataContext) {
       final PsiFile file = CommonDataKeys.PSI_FILE.getData(dataContext);
       if (file == null) return;

platform/lang-impl/src/com/intellij/codeInsight/editorActions/TabOutScopesTrackerImpl.java

@@ -119,7 +119,7 @@ public class TabOutScopesTrackerImpl implements TabOutScopesTracker {
     }
 
     @Override
-    public void beforeDocumentChange(DocumentEvent event) {
+    public void beforeDocumentChange(@NotNull DocumentEvent event) {
       List<RangeMarker> scopes = getCurrentScopes(false);
       if (scopes == null) return;
       int caretOffset = myEditor.getCaretModel().getOffset();

platform/lang-impl/src/com/intellij/codeInsight/editorActions/enter/EnterBetweenBracesAndBracketsDelegate.java

@@ -2,6 +2,7 @@
 package com.intellij.codeInsight.editorActions.enter;
 
 public class EnterBetweenBracesAndBracketsDelegate extends EnterBetweenBracesDelegate {
+  @Override
   protected boolean isBracePair(char lBrace, char rBrace) {
     return super.isBracePair(lBrace, rBrace ) || (lBrace == '[' && rBrace == ']');
   }

platform/lang-impl/src/com/intellij/codeInsight/editorActions/enter/EnterBetweenBracesHandler.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2015 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 
 package com.intellij.codeInsight.editorActions.enter;
 
@@ -25,6 +11,7 @@ import org.jetbrains.annotations.NotNull;
  * @Deprecated Please, use the {@code EnterBetweenBracesDelegate} language-specific implementation instead.
  */
 public class EnterBetweenBracesHandler extends EnterBetweenBracesFinalHandler {
+  @Override
   protected boolean isApplicable(@NotNull PsiFile file,
                                  @NotNull Editor editor,
                                  CharSequence documentText,

platform/lang-impl/src/com/intellij/codeInsight/editorActions/enter/EnterBetweenBracesNoCommitDelegate.java

@@ -11,6 +11,7 @@ import com.intellij.psi.tree.IElementType;
 import org.jetbrains.annotations.NotNull;
 
 public abstract class EnterBetweenBracesNoCommitDelegate extends EnterBetweenBracesDelegate {
+  @Override
   public boolean bracesAreInTheSameElement(@NotNull PsiFile file, @NotNull Editor editor, int lBraceOffset, int rBraceOffset) {
     final HighlighterIterator it = createBeforeIterator((EditorEx)editor, lBraceOffset + 1);
     while(!it.atEnd() && it.getStart() < rBraceOffset) {
@@ -22,6 +23,7 @@ public abstract class EnterBetweenBracesNoCommitDelegate extends EnterBetweenBra
     return true;
   }
 
+  @Override
   public boolean isInComment(@NotNull PsiFile file, @NotNull Editor editor, int offset) {
     final HighlighterIterator it = createBeforeIterator((EditorEx)editor, offset);
     return !it.atEnd() && isCommentType(it.getTokenType());
@@ -29,6 +31,7 @@ public abstract class EnterBetweenBracesNoCommitDelegate extends EnterBetweenBra
 
   public abstract boolean isCommentType(IElementType type);
 
+  @Override
   protected void formatAtOffset(@NotNull PsiFile file, @NotNull Editor editor, int offset, Language language) {
     EnterHandler.adjustLineIndentNoCommit(language,
                                           editor.getDocument(),

platform/lang-impl/src/com/intellij/codeInsight/folding/impl/CollapseBlockHandlerImpl.java

@@ -1,6 +1,4 @@
-/*
- * Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.codeInsight.folding.impl;
 
 import com.intellij.codeInsight.folding.CollapseBlockHandler;
@@ -12,13 +10,13 @@ import com.intellij.openapi.project.Project;
 import com.intellij.openapi.util.TextRange;
 import com.intellij.psi.PsiElement;
 import com.intellij.psi.PsiFile;
-
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
 public abstract class CollapseBlockHandlerImpl implements CollapseBlockHandler {
   Logger LOG = Logger.getInstance("#com.intellij.codeInsight.folding.CollapseBlockHandler");
 
+  @Override
   public void invoke(@NotNull final Project project, @NotNull final Editor editor, @NotNull final PsiFile file) {
     int[] targetCaretOffset = {-1};
     editor.getFoldingModel().runBatchFoldingOperation(() -> {

platform/lang-impl/src/com/intellij/codeInsight/folding/impl/actions/CollapseBlockAction.java

@@ -1,6 +1,4 @@
-/*
- * Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.codeInsight.folding.impl.actions;
 
 import com.intellij.codeInsight.CodeInsightActionHandler;
@@ -20,12 +18,14 @@ public class CollapseBlockAction extends BaseCodeInsightAction {
   @Override
   protected CodeInsightActionHandler getHandler() {
     return new CodeInsightActionHandler() {
+      @Override
       public void invoke(@NotNull final Project project, @NotNull final Editor editor, @NotNull final PsiFile file) {
         executor(project, editor, file, true);
       }
     };
   }
 
+  @Override
   protected boolean isValidForFile(@NotNull Project project, @NotNull Editor editor, @NotNull PsiFile file) {
     return executor(project, editor, file, false);
   }

platform/lang-impl/src/com/intellij/codeInsight/highlighting/BraceHighlighter.java

@@ -70,7 +70,7 @@ public class BraceHighlighter implements StartupActivity {
 
     DocumentListener documentListener = new DocumentListener() {
       @Override
-      public void documentChanged(DocumentEvent e) {
+      public void documentChanged(@NotNull DocumentEvent e) {
         myAlarm.cancelAllRequests();
         Editor[] editors = EditorFactory.getInstance().getEditors(e.getDocument(), project);
         for (Editor editor : editors) {

platform/lang-impl/src/com/intellij/codeInsight/highlighting/HighlightManagerImpl.java

@@ -47,7 +47,7 @@ public class HighlightManagerImpl extends HighlightManager {
 
     DocumentListener documentListener = new DocumentListener() {
       @Override
-      public void documentChanged(DocumentEvent event) {
+      public void documentChanged(@NotNull DocumentEvent event) {
         Document document = event.getDocument();
         Editor[] editors = EditorFactory.getInstance().getEditors(document);
         for (Editor editor : editors) {

platform/lang-impl/src/com/intellij/codeInsight/hint/NextParameterAfterCompletionHandler.java

@@ -1,4 +1,4 @@
-// Copyright 2000-2017 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.codeInsight.hint;
 
 import com.intellij.openapi.actionSystem.ActionManager;
@@ -32,7 +32,7 @@ public class NextParameterAfterCompletionHandler extends EditorActionHandler {
     Ref<Boolean> documentChanged = new Ref<>();
     DocumentListener listener = new DocumentListener() {
       @Override
-      public void documentChanged(DocumentEvent event) {
+      public void documentChanged(@NotNull DocumentEvent event) {
         if (event.getOldLength() > 0 || event.getNewLength() > 0) documentChanged.set(Boolean.TRUE);
       }
     };

platform/lang-impl/src/com/intellij/codeInsight/hint/ParameterInfoController.java

@@ -154,7 +154,7 @@ public class ParameterInfoController extends UserDataHolderBase implements Visib
 
     myEditor.getDocument().addDocumentListener(new DocumentListener() {
       @Override
-      public void documentChanged(DocumentEvent e) {
+      public void documentChanged(@NotNull DocumentEvent e) {
         rescheduleUpdate();
       }
     }, this);
@@ -222,7 +222,7 @@ public class ParameterInfoController extends UserDataHolderBase implements Visib
     }
 
     mySingleParameterInfo = singleParameterInfo && myKeepOnHintHidden;
-    
+
     Pair<Point, Short> pos = myProvider.getBestPointPosition(myHint, myComponent.getParameterOwner(), myLbraceMarker.getStartOffset(),
                                                              null, HintManager.ABOVE);
     HintHint hintHint = HintManagerImpl.createHintHint(myEditor, pos.getFirst(), myHint, pos.getSecond());
@@ -311,7 +311,7 @@ public class ParameterInfoController extends UserDataHolderBase implements Visib
 
     if (elementForUpdating != null) {
       myHandler.updateParameterInfo(elementForUpdating, context);
-      boolean knownParameter = (myComponent.getObjects().length == 1 || myComponent.getHighlighted() != null) && 
+      boolean knownParameter = (myComponent.getObjects().length == 1 || myComponent.getHighlighted() != null) &&
                                myComponent.getCurrentParameterIndex() != -1;
       if (mySingleParameterInfo && !knownParameter && myHint.isVisible()) {
         hideHint();
@@ -381,7 +381,7 @@ public class ParameterInfoController extends UserDataHolderBase implements Visib
     if (argsList == null && !CodeInsightSettings.getInstance().SHOW_PARAMETER_NAME_HINTS_ON_COMPLETION) return;
 
     if (!myHint.isVisible()) AutoPopupController.getInstance(myProject).autoPopupParameterInfo(myEditor, null);
-    
+
     offset = adjustOffsetToInlay(offset);
     VisualPosition visualPosition = myEditor.offsetToVisualPosition(offset);
     if (myEditor.getInlayModel().hasInlineElementAt(visualPosition)) {
@@ -778,7 +778,7 @@ public class ParameterInfoController extends UserDataHolderBase implements Visib
       setBorder(JBUI.Borders.empty());
     }
 
-    // foreground/background/font are used to style the popup (HintManagerImpl.createHintHint) 
+    // foreground/background/font are used to style the popup (HintManagerImpl.createHintHint)
     @Override
     public Color getForeground() {
       return getComponentCount() == 0 ? super.getForeground() : getComponent(0).getForeground();

platform/lang-impl/src/com/intellij/codeInsight/hint/ShowExpressionTypeHandler.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2015 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 
 package com.intellij.codeInsight.hint;
 
@@ -58,6 +44,7 @@ public class ShowExpressionTypeHandler implements CodeInsightActionHandler {
     return false;
   }
 
+  @Override
   public void invoke(@NotNull final Project project, @NotNull final Editor editor, @NotNull PsiFile file) {
     ApplicationManager.getApplication().assertIsDispatchThread();
 

platform/lang-impl/src/com/intellij/codeInsight/hints/settings/ParameterNameHintsConfigurable.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.codeInsight.hints.settings;
 
 import com.intellij.codeInsight.CodeInsightBundle;
@@ -48,8 +34,8 @@ import java.awt.*;
 import java.awt.event.ActionEvent;
 import java.awt.event.ItemEvent;
 import java.awt.event.ItemListener;
-import java.util.*;
 import java.util.List;
+import java.util.*;
 import java.util.stream.Collectors;
 
 import static com.intellij.codeInsight.hints.HintUtilsKt.getBlackListInvalidLineNumbers;
@@ -60,11 +46,11 @@ public class ParameterNameHintsConfigurable extends DialogWrapper {
 
   private JPanel myConfigurable;
   private ComboBox<Language> myCurrentLanguageCombo;
-  
+
   private Map<Language, EditorTextField> myEditors;
   private Map<Language, Boolean> myIsValidPatterns;
   private Map<Option, JBCheckBox> myOptions;
-  
+
   private JPanel myPanel;
   private CardLayout myCardLayout;
 
@@ -77,7 +63,7 @@ public class ParameterNameHintsConfigurable extends DialogWrapper {
     super(null);
     setTitle("Configure Parameter Name Hints");
     init();
-    
+
     if (selectedLanguage != null) {
       showLanguagePanel(selectedLanguage);
       myCurrentLanguageCombo.setSelectedItem(selectedLanguage);
@@ -105,10 +91,10 @@ public class ParameterNameHintsConfigurable extends DialogWrapper {
   private void updateOkEnabled(@NotNull Language language, @NotNull EditorTextField editorTextField) {
     String text = editorTextField.getText();
     List<Integer> invalidLines = getBlackListInvalidLineNumbers(text);
-    
+
     myIsValidPatterns.put(language, invalidLines.isEmpty());
     boolean isEveryOneValid = !myIsValidPatterns.containsValue(false);
-    
+
     getOKAction().setEnabled(isEveryOneValid);
 
     Editor editor = editorTextField.getEditor();
@@ -135,7 +121,7 @@ public class ParameterNameHintsConfigurable extends DialogWrapper {
       String blacklist = editor.getText();
       storeBlackListDiff(language, blacklist);
     });
-    
+
     myOptions.forEach((option, checkBox) -> option.set(checkBox.isSelected()));
     saveLastEditedLanguage();
     ParameterHintsPassFactory.forceHintsUpdateOnNextPass();
@@ -227,7 +213,7 @@ public class ParameterNameHintsConfigurable extends DialogWrapper {
     if (optionsPanel != null) {
       panel.add(optionsPanel);
     }
-    
+
     return panel;
   }
 
@@ -241,12 +227,12 @@ public class ParameterNameHintsConfigurable extends DialogWrapper {
     EditorTextField editorTextField = createBlacklistEditorField(blackList);
     editorTextField.addDocumentListener(new DocumentListener() {
       @Override
-      public void documentChanged(DocumentEvent e) {
+      public void documentChanged(@NotNull DocumentEvent e) {
         updateOkEnabled(language, editorTextField);
       }
     });
     updateOkEnabled(language, editorTextField);
-    
+
     myEditors.put(language, editorTextField);
 
     JPanel blacklistPanel = new JPanel();
@@ -343,7 +329,7 @@ public class ParameterNameHintsConfigurable extends DialogWrapper {
 
   private void initLanguageCombo(Language selected, List<Language> languages) {
     ListComboBoxModel<Language> model = new ListComboBoxModel<>(languages);
-    
+
     myCurrentLanguageCombo = new ComboBox<>(model);
     myCurrentLanguageCombo.setSelectedItem(selected);
     myCurrentLanguageCombo.setRenderer(new ListCellRendererWrapper<Language>() {
@@ -367,7 +353,7 @@ public class ParameterNameHintsConfigurable extends DialogWrapper {
   private void showLanguagePanel(@NotNull Language language) {
     myCardLayout.show(myPanel, language.getID());
   }
-  
+
   private static List<Option> getOptions(Language language) {
     InlayParameterHintsProvider provider = InlayParameterHintsExtension.INSTANCE.forLanguage(language);
     if (provider != null) {
@@ -396,7 +382,7 @@ public class ParameterNameHintsConfigurable extends DialogWrapper {
       .sorted(Comparator.comparing(l -> l.getDisplayName()))
       .collect(Collectors.toList());
   }
-  
+
   @NotNull
   private static EditorTextField createBlacklistEditorField(@NotNull String text) {
     Document document = EditorFactory.getInstance().createDocument(text);

platform/lang-impl/src/com/intellij/codeInsight/intention/impl/QuickEditHandler.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.codeInsight.intention.impl;
 
 import com.intellij.injected.editor.InjectedFileChangesHandler;
@@ -228,7 +214,7 @@ public class QuickEditHandler implements Disposable, DocumentListener {
   }
 
   @Override
-  public void documentChanged(DocumentEvent e) {
+  public void documentChanged(@NotNull DocumentEvent e) {
     UndoManager undoManager = UndoManager.getInstance(myProject);
     boolean undoOrRedo = undoManager.isUndoInProgress() || undoManager.isRedoInProgress();
     if (undoOrRedo) {

platform/lang-impl/src/com/intellij/codeInsight/intention/impl/config/IntentionDescriptionPanel.java

@@ -1,4 +1,4 @@
-// Copyright 2000-2017 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 
 package com.intellij.codeInsight.intention.impl.config;
 
@@ -57,6 +57,7 @@ public class IntentionDescriptionPanel {
   public IntentionDescriptionPanel() {
     myDescriptionBrowser.addHyperlinkListener(
       new HyperlinkListener() {
+        @Override
         public void hyperlinkUpdate(HyperlinkEvent e) {
           if (e.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
             BrowserUtil.browse(e.getURL());
@@ -241,4 +242,4 @@ public class IntentionDescriptionPanel {
     myAfterPanel.setMaximumSize(newd);
     myAfterPanel.setMinimumSize(newd);
   }
-}  
+}

platform/lang-impl/src/com/intellij/codeInsight/lookup/LookupArranger.java

@@ -46,6 +46,7 @@ public abstract class LookupArranger implements WeighingContext {
     item.putUserData(myMatcherKey, matcher);
   }
 
+  @Override
   @NotNull
   public String itemPattern(@NotNull LookupElement element) {
     String prefix = itemMatcher(element).getPrefix();
@@ -53,6 +54,7 @@ public abstract class LookupArranger implements WeighingContext {
     return additionalPrefix.isEmpty() ? prefix : prefix + additionalPrefix;
   }
 
+  @Override
   @NotNull
   public PrefixMatcher itemMatcher(@NotNull LookupElement item) {
     PrefixMatcher matcher = item.getUserData(myMatcherKey);

platform/lang-impl/src/com/intellij/codeInsight/lookup/impl/LookupImpl.java

@@ -721,7 +721,7 @@ public class LookupImpl extends LightweightHint implements LookupEx, Disposable,
   private void addListeners() {
     myEditor.getDocument().addDocumentListener(new DocumentListener() {
       @Override
-      public void documentChanged(DocumentEvent e) {
+      public void documentChanged(@NotNull DocumentEvent e) {
         if (!myChangeGuard && !myFinishing) {
           hideLookup(false);
         }

platform/lang-impl/src/com/intellij/codeInsight/lookup/impl/LookupOffsets.java

@@ -36,7 +36,7 @@ public class LookupOffsets implements DocumentListener {
   }
 
   @Override
-  public void documentChanged(DocumentEvent e) {
+  public void documentChanged(@NotNull DocumentEvent e) {
     if (myStartMarkerDisposeInfo == null && !myLookupStartMarker.isValid()) {
       Throwable throwable = new Throwable();
       String eString = e.toString();
@@ -99,7 +99,7 @@ public class LookupOffsets implements DocumentListener {
     if (myLookupStartMarker.isValid() && myLookupStartMarker.getStartOffset() == start && myLookupStartMarker.getEndOffset() == start) {
       return;
     }
-    
+
     myLookupStartMarker.dispose();
     myLookupStartMarker = createLeftGreedyMarker(start);
     myStartMarkerDisposeInfo = null;

platform/lang-impl/src/com/intellij/codeInsight/navigation/IncrementalSearchHandler.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 
 package com.intellij.codeInsight.navigation;
 
@@ -167,7 +153,7 @@ public class IncrementalSearchHandler {
 
     documentListener[0] = new DocumentListener() {
       @Override
-      public void documentChanged(DocumentEvent e) {
+      public void documentChanged(@NotNull DocumentEvent e) {
         if (!hint.isVisible()) return;
         hint.hide();
       }

platform/lang-impl/src/com/intellij/codeInsight/template/impl/InvokeTemplateAction.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2014 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.codeInsight.template.impl;
 
 import com.intellij.codeInsight.template.TemplateManager;
@@ -79,6 +65,7 @@ public class InvokeTemplateAction extends AnAction {
     }
 
     CommandProcessor.getInstance().executeCommand(myProject, () -> myEditor.getCaretModel().runForEachCaret(new CaretAction() {
+      @Override
       public void perform(Caret caret) {
         // adjust the selection so that it starts with a non-whitespace character (to make sure that the template is inserted
         // at a meaningful position rather than at indent 0)

platform/lang-impl/src/com/intellij/codeInsight/template/impl/LiveTemplateSettingsEditor.java

@@ -148,7 +148,7 @@ public class LiveTemplateSettingsEditor extends JPanel {
 
     myTemplateEditor.getDocument().addDocumentListener(new DocumentListener() {
       @Override
-      public void documentChanged(DocumentEvent e) {
+      public void documentChanged(@NotNull DocumentEvent e) {
         validateEditVariablesButton();
 
         myTemplate.setString(myTemplateEditor.getDocument().getText());

platform/lang-impl/src/com/intellij/codeInsight/template/impl/TemplateExpandShortcutPanel.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2014 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.codeInsight.template.impl;
 
 import com.intellij.codeInsight.CodeInsightBundle;
@@ -105,6 +91,7 @@ public class TemplateExpandShortcutPanel extends JPanel {
       }
     });
     addPropertyChangeListener(new PropertyChangeListener() {
+      @Override
       public void propertyChange(final PropertyChangeEvent evt) {
         if (isConfigurableOpenEvent(evt)) {
           resizeComboToFitCustomShortcut();

platform/lang-impl/src/com/intellij/codeInsight/template/impl/TemplateState.java

@@ -100,7 +100,7 @@ public class TemplateState implements Disposable {
     if (isDisposed()) return;
     myEditorDocumentListener = new DocumentListener() {
       @Override
-      public void beforeDocumentChange(DocumentEvent e) {
+      public void beforeDocumentChange(@NotNull DocumentEvent e) {
         myDocumentChanged = true;
       }
     };

platform/lang-impl/src/com/intellij/codeInsight/template/postfix/templates/PostfixTemplateExpressionSelectorBase.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2015 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.codeInsight.template.postfix.templates;
 
 import com.intellij.openapi.editor.Document;
@@ -60,6 +46,7 @@ public abstract class PostfixTemplateExpressionSelectorBase implements PostfixTe
     return ContainerUtil.filter(getNonFilteredExpressions(context, document, offset), getFilters(offset));
   }
 
+  @Override
   @NotNull
   public Function<PsiElement, String> getRenderer() {
     return element -> element.getText();

platform/lang-impl/src/com/intellij/codeInsight/template/postfix/templates/PostfixTemplateWithExpressionSelector.java

@@ -90,6 +90,7 @@ public abstract class PostfixTemplateWithExpressionSelector extends PostfixTempl
     IntroduceTargetChooser.showChooser(
       editor, expressions,
       new Pass<PsiElement>() {
+        @Override
         public void pass(@NotNull final PsiElement e) {
           prepareAndExpandForChooseExpression(e, editor);
         }

platform/lang-impl/src/com/intellij/codeInsight/template/postfix/templates/editable/EditablePostfixTemplate.java

@@ -79,6 +79,7 @@ public abstract class EditablePostfixTemplate extends PostfixTemplate {
     IntroduceTargetChooser.showChooser(
       editor, expressions,
       new Pass<PsiElement>() {
+        @Override
         public void pass(@NotNull final PsiElement e) {
           prepareAndExpandForChooseExpression(e, editor);
         }

platform/lang-impl/src/com/intellij/codeInspection/actions/SilentCodeCleanupAction.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 
 package com.intellij.codeInspection.actions;
 
@@ -33,11 +19,13 @@ import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
 public class SilentCodeCleanupAction extends AnAction {
+  @Override
   public void update(@NotNull AnActionEvent e) {
     Project project = e.getProject();
     e.getPresentation().setEnabled(project != null && !DumbService.isDumb(project) && getInspectionScope(e.getDataContext(), project) != null);
   }
 
+  @Override
   public void actionPerformed(@NotNull AnActionEvent e) {
     Project project = e.getProject();
     if (project == null) return;

platform/lang-impl/src/com/intellij/codeInspection/ex/PerformFixesModalTask.java

@@ -68,6 +68,7 @@ public abstract class PerformFixesModalTask implements SequentialTask {
     }
   }
 
+  @Override
   public boolean iteration(ProgressIndicator indicator) {
     final Pair<CommonProblemDescriptor, Boolean> pair = nextDescriptor();
     CommonProblemDescriptor descriptor = pair.getFirst();
@@ -115,7 +116,7 @@ public abstract class PerformFixesModalTask implements SequentialTask {
 
   @Override
   public void stop() {}
-  
+
   protected abstract void applyFix(Project project, CommonProblemDescriptor descriptor);
 
   private Pair<CommonProblemDescriptor, Boolean> nextDescriptor() {

platform/lang-impl/src/com/intellij/codeInspection/ui/DefaultInspectionToolPresentation.java

@@ -67,6 +67,7 @@ public class DefaultInspectionToolPresentation implements InspectionToolPresenta
     myContext = context;
   }
 
+  @Override
   public void resolveProblem(@NotNull CommonProblemDescriptor descriptor) {
     RefEntity entity = myProblemElements.removeValue(descriptor);
     if (entity != null) {
@@ -74,10 +75,12 @@ public class DefaultInspectionToolPresentation implements InspectionToolPresenta
     }
   }
 
+  @Override
   public boolean isProblemResolved(@Nullable CommonProblemDescriptor descriptor) {
     return myResolvedElements.containsValue(descriptor);
   }
 
+  @Override
   public boolean isProblemResolved(@Nullable RefEntity entity) {
     return myResolvedElements.containsKey(entity);
   }
@@ -94,6 +97,7 @@ public class DefaultInspectionToolPresentation implements InspectionToolPresenta
     return myResolvedElements.getOrDefault(entity, CommonProblemDescriptor.EMPTY_ARRAY);
   }
 
+  @Override
   public void suppressProblem(@NotNull CommonProblemDescriptor descriptor) {
     mySuppressedElements.put(myProblemElements.removeValue(descriptor), descriptor);
   }

platform/lang-impl/src/com/intellij/codeInspection/ui/RefElementNode.java

@@ -1,6 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 
 package com.intellij.codeInspection.ui;
 
@@ -41,6 +39,7 @@ public class RefElementNode extends SuppressableInspectionTreeNode {
     return myHasDescriptorsUnder;
   }
 
+  @Override
   @Nullable
   public RefEntity getElement() {
     return (RefEntity)getUserObject();

platform/lang-impl/src/com/intellij/execution/ExecutionTargetManagerImpl.java

@@ -50,7 +50,7 @@ public class ExecutionTargetManagerImpl extends ExecutionTargetManager implement
       return true;
     }
   };
-  
+
   @NotNull private final Project myProject;
   @NotNull private final Object myActiveTargetLock = new Object();
   @Nullable private ExecutionTarget myActiveTarget;
@@ -176,6 +176,7 @@ public class ExecutionTargetManagerImpl extends ExecutionTargetManager implement
     return null;
   }
 
+  @Override
   protected boolean doCanRun(@Nullable RunnerAndConfigurationSettings settings, @NotNull ExecutionTarget target) {
     if (settings == null) return false;
 
@@ -276,7 +277,7 @@ public class ExecutionTargetManagerImpl extends ExecutionTargetManager implement
     ApplicationManager.getApplication().assertIsDispatchThread();
     updateActiveTarget();
   }
-  
+
   @TestOnly
   public void reset() {
     mySavedActiveTargetId = null;

platform/lang-impl/src/com/intellij/execution/console/DefaultConsoleHistoryModel.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.execution.console;
 
 import com.intellij.ide.ui.UISettings;
@@ -165,6 +151,7 @@ public class DefaultConsoleHistoryModel extends SimpleModificationTracker implem
     }
   }
 
+  @Override
   public int getCurrentIndex() {
     synchronized (myLock) {
       return myIndex;

platform/lang-impl/src/com/intellij/execution/console/LanguageConsoleBuilder.java

@@ -376,7 +376,7 @@ public final class LanguageConsoleBuilder {
       }
 
       @Override
-      public void documentChanged(DocumentEvent event) {
+      public void documentChanged(@NotNull DocumentEvent event) {
         DocumentEx document = getDocument();
         if (document.isInBulkUpdate()) {
           return;

platform/lang-impl/src/com/intellij/execution/console/LanguageConsoleImpl.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.execution.console;
 
 import com.intellij.execution.impl.ConsoleViewImpl;
@@ -91,7 +77,7 @@ public class LanguageConsoleImpl extends ConsoleViewImpl implements LanguageCons
   private final JScrollBar myScrollBar = new JBScrollBar(Adjustable.HORIZONTAL);
   private final DocumentListener myDocumentAdapter = new DocumentListener() {
     @Override
-    public void documentChanged(DocumentEvent event) {
+    public void documentChanged(@NotNull DocumentEvent event) {
       myPanel.revalidate();
     }
   };

platform/lang-impl/src/com/intellij/execution/dashboard/tree/RunDashboardTreeMouseListener.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.execution.dashboard.tree;
 
 import com.intellij.execution.dashboard.hyperlink.RunDashboardHyperlinkComponent;
@@ -53,6 +39,7 @@ public class RunDashboardTreeMouseListener extends RunDashboardLinkMouseListener
     return aimedObject;
   }
 
+  @Override
   protected void repaintComponent(MouseEvent e) {
     final TreePath path = myTree.getPathForLocation(e.getX(), e.getY());
     if (path != null) {

platform/lang-impl/src/com/intellij/find/impl/FindDialog.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 
 package com.intellij.find.impl;
 
@@ -89,8 +75,8 @@ import javax.swing.table.TableCellRenderer;
 import javax.swing.text.JTextComponent;
 import java.awt.*;
 import java.awt.event.*;
-import java.util.*;
 import java.util.List;
+import java.util.*;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.regex.Pattern;
 import java.util.regex.PatternSyntaxException;
@@ -287,7 +273,7 @@ public class FindDialog extends DialogWrapper implements FindUI {
 
       DocumentListener listener = new DocumentListener() {
         @Override
-        public void documentChanged(final DocumentEvent e) {
+        public void documentChanged(@NotNull final DocumentEvent e) {
           handleComboBoxValueChanged(comboBox);
         }
       };
@@ -585,9 +571,9 @@ public class FindDialog extends DialogWrapper implements FindUI {
     topOptionsPanel.setLayout(new GridLayout(1, 2, UIUtil.DEFAULT_HGAP, 0));
     topOptionsPanel.add(createFindOptionsPanel());
     optionsPanel.add(topOptionsPanel, gbConstraints);
-    
+
     JPanel resultsOptionPanel = null;
-    
+
     if (myHelper.getModel().isMultipleFiles()) {
       optionsPanel.add(createGlobalScopePanel(), gbConstraints);
       gbConstraints.weightx = 1;
@@ -1547,7 +1533,7 @@ public class FindDialog extends DialogWrapper implements FindUI {
     private final ColoredTableCellRenderer myFileAndLineNumber = new ColoredTableCellRenderer() {
       private final SimpleTextAttributes REPEATED_FILE_ATTRIBUTES = new SimpleTextAttributes(SimpleTextAttributes.STYLE_PLAIN, new JBColor(0xCCCCCC, 0x5E5E5E));
       private final SimpleTextAttributes ORDINAL_ATTRIBUTES = new SimpleTextAttributes(SimpleTextAttributes.STYLE_PLAIN, new JBColor(0x999999, 0x999999));
-      
+
       @Override
       protected void customizeCellRenderer(JTable table, Object value, boolean selected, boolean hasFocus, int row, int column) {
         if (value instanceof UsageInfo2UsageAdapter) {

platform/lang-impl/src/com/intellij/find/impl/FindPopupPanel.java

@@ -72,8 +72,8 @@ import javax.swing.table.DefaultTableModel;
 import javax.swing.text.JTextComponent;
 import java.awt.*;
 import java.awt.event.*;
-import java.util.*;
 import java.util.List;
+import java.util.*;
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.regex.Pattern;
@@ -377,7 +377,7 @@ public class FindPopupPanel extends JBPanel implements FindUI {
       final EditorTextField etf = (EditorTextField) editorComponent;
       etf.addDocumentListener(new DocumentListener() {
         @Override
-        public void documentChanged(com.intellij.openapi.editor.event.DocumentEvent event) {
+        public void documentChanged(@NotNull com.intellij.openapi.editor.event.DocumentEvent event) {
           onFileMaskChanged();
         }
       });
@@ -556,7 +556,7 @@ public class FindPopupPanel extends JBPanel implements FindUI {
 
     DumbAwareAction.create(__ -> myReplaceAllButton.doClick()).registerCustomShortcutSet(new CustomShortcutSet(REPLACE_ALL), this);
     myReplaceAllButton.setToolTipText(KeymapUtil.getKeystrokeText(REPLACE_ALL));
-    
+
     List<Shortcut> navigationKeyStrokes = ContainerUtil.newArrayList();
     KeyStroke viewSourceKeyStroke = KeymapUtil.getKeyStroke(CommonShortcuts.getViewSource());
     if (viewSourceKeyStroke != null && !Comparing.equal(viewSourceKeyStroke, ENTER_WITH_MODIFIERS) && !Comparing.equal(viewSourceKeyStroke, ENTER)) {

platform/lang-impl/src/com/intellij/find/impl/livePreview/LivePreviewController.java

@@ -64,7 +64,7 @@ public class LivePreviewController implements LivePreview.Delegate, FindUtil.Rep
 
   private final DocumentListener myDocumentListener = new DocumentListener() {
     @Override
-    public void documentChanged(final DocumentEvent e) {
+    public void documentChanged(@NotNull final DocumentEvent e) {
       if (!myTrackingDocument) {
         myChanged = true;
         return;

platform/lang-impl/src/com/intellij/find/impl/livePreview/SearchResults.java

@@ -30,8 +30,8 @@ import org.jetbrains.annotations.Nullable;
 import javax.swing.*;
 import java.awt.*;
 import java.lang.reflect.InvocationTargetException;
-import java.util.*;
 import java.util.List;
+import java.util.*;
 import java.util.concurrent.ExecutionException;
 import java.util.regex.PatternSyntaxException;
 
@@ -42,7 +42,7 @@ public class SearchResults implements DocumentListener {
   }
 
   @Override
-  public void beforeDocumentChange(DocumentEvent event) {
+  public void beforeDocumentChange(@NotNull DocumentEvent event) {
     myCursorPositions.clear();
   }
 
@@ -181,7 +181,7 @@ public class SearchResults implements DocumentListener {
     searchCompleted(new ArrayList<>(), getEditor(), null, false, null, getStamp());
   }
 
-  ActionCallback updateThreadSafe(@NotNull FindModel findModel, final boolean toChangeSelection, 
+  ActionCallback updateThreadSafe(@NotNull FindModel findModel, final boolean toChangeSelection,
                                   @Nullable final TextRange next, final int stamp) {
     if (myDisposed) return ActionCallback.DONE;
 
@@ -617,7 +617,7 @@ public class SearchResults implements DocumentListener {
       listener.cursorMoved();
     }
   }
-  
+
   public boolean isUpToDate() {
     return myDocumentTimestamp == myEditor.getDocument().getModificationStamp();
   }

platform/lang-impl/src/com/intellij/formatting/FormatterImpl.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2017 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 
 package com.intellij.formatting;
 
@@ -273,6 +259,7 @@ public class FormatterImpl extends FormatterEx
     format(model, settings, indentOptions, affectedRanges, false);
   }
 
+  @Override
   public void format(final FormattingModel model,
                      final CodeStyleSettings settings,
                      final CommonCodeStyleSettings.IndentOptions indentOptions,
@@ -492,7 +479,7 @@ public class FormatterImpl extends FormatterEx
                                                              @Nullable FormatTextRanges affectedRanges) {
     return buildProcessorAndWrapBlocks(docModel, rootBlock, settings, indentOptions, affectedRanges, -1);
   }
-  
+
   private static FormatProcessor buildProcessorAndWrapBlocks(final FormattingDocumentModel docModel,
                                                              Block rootBlock,
                                                              CodeStyleSettings settings,
@@ -573,7 +560,7 @@ public class FormatterImpl extends FormatterEx
     }
     return null;
   }
-  
+
   @Nullable
   private static WhiteSpace getWhiteSpaceAtOffset(int offset,
                                                   @NotNull FormatProcessor formatProcessor) {

platform/lang-impl/src/com/intellij/ide/GeneratedSourceFileChangeTrackerImpl.java

@@ -61,7 +61,7 @@ public class GeneratedSourceFileChangeTrackerImpl extends GeneratedSourceFileCha
     };
     EditorFactory.getInstance().getEventMulticaster().addDocumentListener(new DocumentListener() {
       @Override
-      public void documentChanged(DocumentEvent e) {
+      public void documentChanged(@NotNull DocumentEvent e) {
         if (myProject.isDisposed()) return;
         VirtualFile file = myDocumentManager.getFile(e.getDocument());
         ProjectFileIndex fileIndex = ProjectFileIndex.getInstance(myProject);

platform/lang-impl/src/com/intellij/ide/actions/runAnything/activity/RunAnythingCommandProvider.java

@@ -35,6 +35,7 @@ public abstract class RunAnythingCommandProvider extends RunAnythingProviderBase
   public final String AD_DELETE_COMMAND_TEXT =
     IdeBundle.message("run.anything.ad.command.delete", KeymapUtil.getShortcutText(KeyboardShortcut.fromString("shift BACK_SPACE")));
 
+  @Override
   public void execute(@NotNull DataContext dataContext, @NotNull String value) {
     VirtualFile workDirectory = dataContext.getData(CommonDataKeys.VIRTUAL_FILE);
     Executor executor = dataContext.getData(RunAnythingAction.EXECUTOR_KEY);

platform/lang-impl/src/com/intellij/ide/actions/runAnything/activity/RunAnythingProviderBase.java

@@ -24,16 +24,19 @@ public abstract class RunAnythingProviderBase<V> implements RunAnythingProvider<
     return ContainerUtil.emptyList();
   }
 
+  @Override
   @Nullable
   public V findMatchingValue(@NotNull DataContext dataContext, @NotNull String pattern) {
     return getValues(dataContext, pattern).stream().filter(value -> StringUtil.equals(pattern, getCommand(value))).findFirst().orElse(null);
   }
 
+  @Override
   @Nullable
   public Icon getIcon(@NotNull V value) {
     return null;
   }
 
+  @Override
   @Nullable
   public String getAdText() {
     return null;
@@ -56,6 +59,7 @@ public abstract class RunAnythingProviderBase<V> implements RunAnythingProvider<
     return new RunAnythingHelpItem(placeholder, commandPrefix, getHelpDescription(), getHelpIcon());
   }
 
+  @Override
   @Nullable
   public String getCompletionGroupTitle() {
     return null;

platform/lang-impl/src/com/intellij/ide/actions/runAnything/activity/RunAnythingRecentProjectProvider.java

@@ -19,6 +19,7 @@ public class RunAnythingRecentProjectProvider extends RunAnythingAnActionProvide
     return Arrays.stream(RecentProjectsManager.getInstance().getRecentProjectsActions(false)).collect(Collectors.toList());
   }
 
+  @Override
   @NotNull
   public String getCompletionGroupTitle() {
     return IdeBundle.message("run.anything.recent.project.completion.group.title");