don't suggest 'this' keyword in java comments

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

@@ -551,6 +551,10 @@ public class JavaCompletionData extends JavaAwareCompletionData{
   @Override
   public void fillCompletions(CompletionParameters parameters, CompletionResultSet result) {
     final PsiElement position = parameters.getPosition();
+    if (PsiTreeUtil.getParentOfType(position, PsiComment.class, false) != null) {
+      return;
+    }
+
     if (SUPER_OR_THIS_PATTERN.accepts(position)) {
       if (AFTER_DOT.accepts(position) && !isInsideQualifierClass(position)) return;
 

java/java-tests/testData/codeInsight/completion/normal/NoThisInComment.java

@@ -0,0 +1,6 @@
+class Foo {
+    {
+        int[] x = new int[]{ // th<caret>
+        }
+    }
+}

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

@@ -355,6 +355,8 @@ public class NormalCompletionTest extends LightFixtureCompletionTestCase {
     doTest();
   }
 
+  public void testNoThisInComment() throws Throwable { doAntiTest() }
+
   public void testLastExpressionInFor() throws Throwable { doTest(); }
 
   public void testUndoCommonPrefixOnHide() throws Throwable {//actually don't undo