From ec239fd6079701ca924bf30a98759a6143303937 Mon Sep 17 00:00:00 2001
From: Gregory Shrago <Gregory.Shrago@jetbrains.com>
Date: Wed, 25 Nov 2009 17:41:49 +0300
Subject: [PATCH] performance

---
 .../editorActions/CopyPasteReferenceProcessor.java        | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/java/java-impl/src/com/intellij/codeInsight/editorActions/CopyPasteReferenceProcessor.java b/java/java-impl/src/com/intellij/codeInsight/editorActions/CopyPasteReferenceProcessor.java
index 30c4ebcc7c31..dabe31bccb74 100644
--- a/java/java-impl/src/com/intellij/codeInsight/editorActions/CopyPasteReferenceProcessor.java
+++ b/java/java-impl/src/com/intellij/codeInsight/editorActions/CopyPasteReferenceProcessor.java
@@ -44,6 +44,9 @@ public class CopyPasteReferenceProcessor implements CopyPastePostProcessor {
     if (file instanceof PsiCompiledElement) {
       file = (PsiFile) ((PsiCompiledElement) file).getMirror();
     }
+    if (!(file instanceof PsiClassOwner)) {
+      return new ReferenceTransferableData(new ReferenceTransferableData.ReferenceData[0]);
+    }
 
     final ArrayList<ReferenceTransferableData.ReferenceData> array = new ArrayList<ReferenceTransferableData.ReferenceData>();
     for (int j = 0; j < startOffsets.length; j++) {
@@ -104,10 +107,13 @@ public class CopyPasteReferenceProcessor implements CopyPastePostProcessor {
     if (DumbService.getInstance(project).isDumb()) {
       return;
     }
-
     final Document document = editor.getDocument();
     final PsiFile file = PsiDocumentManager.getInstance(project).getPsiFile(document);
 
+    if (!(file instanceof PsiClassOwner)) {
+      return;
+    }
+
     PsiDocumentManager.getInstance(project).commitAllDocuments();
     final ReferenceTransferableData.ReferenceData[] referenceData = ((ReferenceTransferableData)value).getData();
     final PsiJavaCodeReferenceElement[] refs = findReferencesToRestore(file, bounds, referenceData);