to line end comment: trim lines

plugins/IntentionPowerPak/src/com/siyeh/ipp/comment/ChangeToEndOfLineCommentIntention.java

@@ -53,7 +53,7 @@ public class ChangeToEndOfLineCommentIntention extends Intention {
       }
     }
     final PsiComment newComment =
-      factory.createCommentFromText("//" + lines[0], parent);
+      factory.createCommentFromText("//" + lines[0].trim(), parent);
     final PsiElement replacedComment = comment.replace(newComment);
     codeStyleManager.reformat(replacedComment);
   }

plugins/IntentionPowerPak/test/com/siyeh/ipp/comment/to_end_of_line/TrimLines.java

@@ -0,0 +1,3 @@
+class MyTest {
+    /* simple end comment<caret> */
+}

plugins/IntentionPowerPak/test/com/siyeh/ipp/comment/to_end_of_line/TrimLines_after.java

@@ -0,0 +1,3 @@
+class MyTest {
+    //simple end comment<caret>
+}

plugins/IntentionPowerPak/testSrc/com/siyeh/ipp/comment/ChangeToEndOfLineCommentIntentionTest.java

@@ -0,0 +1,20 @@
+// 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.siyeh.ipp.comment;
+
+import com.siyeh.IntentionPowerPackBundle;
+import com.siyeh.ipp.IPPTestCase;
+
+public class ChangeToEndOfLineCommentIntentionTest extends IPPTestCase {
+
+  public void testTrimLines() { doTest(); }
+
+  @Override
+  protected String getIntentionName() {
+    return IntentionPowerPackBundle.message("change.to.end.of.line.comment.intention.name");
+  }
+
+  @Override
+  protected String getRelativePath() {
+    return "comment/to_end_of_line";
+  }
+}