cleanup

java/java-psi-api/src/com/intellij/openapi/projectRoots/JavaSdkVersion.java

@@ -30,7 +30,7 @@ public enum JavaSdkVersion {
 
   private final LanguageLevel myMaxLanguageLevel;
 
-  JavaSdkVersion(LanguageLevel maxLanguageLevel) {
+  JavaSdkVersion(@NotNull LanguageLevel maxLanguageLevel) {
     myMaxLanguageLevel = maxLanguageLevel;
   }
 

java/java-tests/testSrc/com/intellij/java/find/impl/FindManagerTest.java

@@ -70,6 +70,7 @@ import com.intellij.util.CommonProcessors;
 import com.intellij.util.ThrowableRunnable;
 import com.intellij.util.WaitFor;
 import com.intellij.util.containers.ContainerUtil;
+import org.intellij.lang.annotations.Language;
 import org.jetbrains.annotations.NotNull;
 
 import java.io.File;
@@ -102,7 +103,7 @@ public class FindManagerTest extends DaemonAnalyzerTestCase {
 
   public void testFindString() throws InterruptedException {
     FindModel findModel = FindManagerTestUtils.configureFindModel("done");
-
+    @Language("JAVA")
     String text = "public static class MyClass{\n/*done*/\npublic static void main(){}}";
     FindResult findResult = myFindManager.findString(text, 0, findModel);
     assertTrue(findResult.isStringFound());
@@ -609,6 +610,7 @@ public class FindManagerTest extends DaemonAnalyzerTestCase {
   public void testFindInCommentsInJsInsideHtml() {
     FindModel findModel = FindManagerTestUtils.configureFindModel("@param t done");
 
+    @Language("HTML")
     String text = "<script>\n" +
                   "/**\n" +
                   " * @param t done\n" +

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

@@ -60,6 +60,7 @@ import org.jetbrains.annotations.Nullable;
 
 import java.lang.ref.Reference;
 import java.lang.ref.SoftReference;
+import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 import java.util.Set;
@@ -283,8 +284,8 @@ public abstract class AbstractFileViewProvider extends UserDataHolderBase implem
 
   public final void onContentReload() {
     List<PsiFile> files = getCachedPsiFiles();
-    List<PsiTreeChangeEventImpl> events = ContainerUtil.newArrayList();
-    List<PsiTreeChangeEventImpl> genericEvents = ContainerUtil.newArrayList();
+    List<PsiTreeChangeEventImpl> events = new ArrayList<>(files.size());
+    List<PsiTreeChangeEventImpl> genericEvents = new ArrayList<>(files.size());
     for (PsiFile file : files) {
       genericEvents.add(createChildrenChangeEvent(file, true));
       events.add(createChildrenChangeEvent(file, false));

platform/lang-impl/src/com/intellij/codeInsight/preview/ImageOrColorPreviewManager.java

@@ -153,7 +153,7 @@ public class ImageOrColorPreviewManager implements Disposable, EditorMouseMotion
       return Collections.emptySet();
     }
 
-    final Set<PsiElement> elements = Collections.newSetFromMap(ContainerUtil.createWeakMap());
+    final Set<PsiElement> elements = ContainerUtil.createWeakSet();
     final int offset = editor.logicalPositionToOffset(editor.xyToLogicalPosition(point));
     if (documentManager.isCommitted(document)) {
       ContainerUtil.addIfNotNull(elements, InjectedLanguageUtil.findElementAtNoCommit(psiFile, offset));
@@ -180,42 +180,31 @@ public class ImageOrColorPreviewManager implements Disposable, EditorMouseMotion
 
     alarm.cancelAllRequests();
     Point point = event.getMouseEvent().getPoint();
-    if (myElements == null && event.getMouseEvent().isShiftDown()) {
+    Collection<PsiElement> elements = myElements;
+    if (elements == null && event.getMouseEvent().isShiftDown()) {
       alarm.addRequest(new PreviewRequest(point, editor, false), 100);
     }
-    else if (myElements != null) {
-      Collection<PsiElement> elements = myElements;
-      if (!getPsiElementsAt(point, editor).equals(elements)) {
-        myElements = null;
-        for (ElementPreviewProvider provider : Extensions.getExtensions(ElementPreviewProvider.EP_NAME)) {
-          try {
-            if (elements != null) {
-              for (PsiElement element : elements) {
-                provider.hide(element, editor);
-              }
-            } else {
-              provider.hide(null, editor);
-            }
-          }
-          catch (Exception e) {
-            LOG.error(e);
+    else if (elements != null && !getPsiElementsAt(point, editor).equals(elements)) {
+      myElements = null;
+      for (ElementPreviewProvider provider : Extensions.getExtensions(ElementPreviewProvider.EP_NAME)) {
+        try {
+          for (PsiElement element : elements) {
+            provider.hide(element, editor);
           }
         }
+        catch (Exception e) {
+          LOG.error(e);
+        }
       }
     }
   }
 
-  @Override
-  public void mouseDragged(@NotNull EditorMouseEvent e) {
-    // nothing
-  }
-
   private final class PreviewRequest implements Runnable {
     private final Point point;
     private final Editor editor;
     private final boolean keyTriggered;
 
-    public PreviewRequest(Point point, Editor editor, boolean keyTriggered) {
+    PreviewRequest(Point point, Editor editor, boolean keyTriggered) {
       this.point = point;
       this.editor = editor;
       this.keyTriggered = keyTriggered;