IDEA-113028 Complete statement doesn't complete class declaration

java/java-impl/src/com/intellij/codeInsight/editorActions/smartEnter/JavaSmartEnterProcessor.java

@@ -69,6 +69,7 @@ public class JavaSmartEnterProcessor extends SmartEnterProcessor {
     fixers.add(new MissingForeachBodyFixer());
     fixers.add(new ParameterListFixer());
     fixers.add(new MissingMethodBodyFixer());
+    fixers.add(new MissingClassBodyFixer());
     fixers.add(new MissingReturnExpressionFixer());
     fixers.add(new MissingThrowExpressionFixer());
     fixers.add(new ParenthesizedFixer());

java/java-impl/src/com/intellij/codeInsight/editorActions/smartEnter/MissingClassBodyFixer.java

@@ -0,0 +1,21 @@
+package com.intellij.codeInsight.editorActions.smartEnter;
+
+import com.intellij.openapi.editor.Editor;
+import com.intellij.psi.PsiClass;
+import com.intellij.psi.PsiElement;
+import com.intellij.util.IncorrectOperationException;
+
+/**
+ * @author peter
+ */
+public class MissingClassBodyFixer implements Fixer {
+  @Override
+  public void apply(Editor editor, JavaSmartEnterProcessor processor, PsiElement psiElement) throws IncorrectOperationException {
+    if (!(psiElement instanceof PsiClass)) return;
+    PsiClass psiClass = (PsiClass) psiElement;
+
+    if (psiClass.getLBrace() == null) {
+      editor.getDocument().insertString(psiClass.getTextRange().getEndOffset(), " {\n}");
+    }
+  }
+}

java/java-tests/testData/codeInsight/completeStatement/Class.java

@@ -0,0 +1 @@
+public class Test<caret>

java/java-tests/testData/codeInsight/completeStatement/Class_after.java

@@ -0,0 +1,3 @@
+public class Test {
+    <caret>
+}

java/java-tests/testSrc/com/intellij/codeInsight/CompleteStatementTest.java

@@ -106,6 +106,8 @@ public class CompleteStatementTest extends EditorActionTestCase {
 
   public void testMethod() throws Exception { doTest(); }
 
+  public void testClass() throws Exception { doTest(); }
+
   public void testCompleteElseIf() throws Exception { doTest(); }
 
   public void testCompleteStringLiteral() throws Exception {