From df8a0ecfc34bbd9d3a7d9649b9146ad82e49c32a Mon Sep 17 00:00:00 2001
From: Anna Kozlova <anna.kozlova@jetbrains.com>
Date: Thu, 12 May 2011 13:29:09 +0400
Subject: [PATCH] cannot modify read only file

---
 .../codeInspection/javaDoc/JavaDocReferenceInspection.java      | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/java/java-impl/src/com/intellij/codeInspection/javaDoc/JavaDocReferenceInspection.java b/java/java-impl/src/com/intellij/codeInspection/javaDoc/JavaDocReferenceInspection.java
index 4cf4d7f9bc6e..cc67b4e8826f 100644
--- a/java/java-impl/src/com/intellij/codeInspection/javaDoc/JavaDocReferenceInspection.java
+++ b/java/java-impl/src/com/intellij/codeInspection/javaDoc/JavaDocReferenceInspection.java
@@ -16,6 +16,7 @@
 package com.intellij.codeInspection.javaDoc;
 
 import com.intellij.codeHighlighting.HighlightDisplayLevel;
+import com.intellij.codeInsight.CodeInsightUtilBase;
 import com.intellij.codeInsight.daemon.QuickFixBundle;
 import com.intellij.codeInsight.daemon.impl.quickfix.ImportClassFix;
 import com.intellij.codeInsight.lookup.LookupElement;
@@ -327,6 +328,7 @@ public class JavaDocReferenceInspection extends BaseLocalInspectionTool {
     public void applyFix(@NotNull Project project, @NotNull ProblemDescriptor descriptor) {
       final PsiDocTag myTag = PsiTreeUtil.getParentOfType(descriptor.getPsiElement(), PsiDocTag.class);
       if (myTag == null) return;
+      if (!CodeInsightUtilBase.preparePsiElementForWrite(myTag)) return;
       myTag.delete();
     }
   }