From 14dcdbebb374baa7adb9b471a9e42aed59393675 Mon Sep 17 00:00:00 2001
From: anna <Anna.Kozlova@jetbrains.com>
Date: Tue, 5 Apr 2011 12:19:21 +0200
Subject: [PATCH] enable implement interface at the end of identifier
 (IDEA-67421)

---
 .../codeInsight/intention/impl/CreateSubclassAction.java  | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/java/java-impl/src/com/intellij/codeInsight/intention/impl/CreateSubclassAction.java b/java/java-impl/src/com/intellij/codeInsight/intention/impl/CreateSubclassAction.java
index 3c02ffc7f784..7eaf604bd6a3 100644
--- a/java/java-impl/src/com/intellij/codeInsight/intention/impl/CreateSubclassAction.java
+++ b/java/java-impl/src/com/intellij/codeInsight/intention/impl/CreateSubclassAction.java
@@ -90,7 +90,13 @@ public class CreateSubclassAction extends PsiElementBaseIntentionAction {
     if (element.getTextOffset() >= lBrace.getTextOffset()) return false;
 
     TextRange declarationRange = HighlightNamesUtil.getClassDeclarationTextRange(psiClass);
-    if (!declarationRange.contains(element.getTextRange())) return false;
+    final TextRange elementTextRange = element.getTextRange();
+    if (!declarationRange.contains(elementTextRange)) {
+      if (!(element instanceof PsiWhiteSpace) || (declarationRange.getStartOffset() != elementTextRange.getEndOffset() &&
+                                                  declarationRange.getEndOffset() != elementTextRange.getStartOffset())) {
+        return false;
+      }
+    }
 
     myText = getTitle(psiClass);
     return true;