another race condition with accessing SrcFileAnnotator.myFile after it has been disposed (https://ea.jetbrains.com/browser/ea_reports/772151)

plugins/coverage-common/src/com/intellij/coverage/SrcFileAnnotator.java

@@ -1,5 +1,17 @@
 /*
- * Copyright (c) 2000-2006 JetBrains s.r.o. All Rights Reserved.
+ * Copyright 2000-2015 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 package com.intellij.coverage;
@@ -287,7 +299,8 @@ public class SrcFileAnnotator implements Disposable {
     // let's find old content in local history and build mapping from old lines to new one
     // local history doesn't index libraries, so let's distinguish libraries content with other one
     final ProjectFileIndex projectFileIndex = ProjectRootManager.getInstance(myProject).getFileIndex();
-    final VirtualFile file = getVirtualFile();
+    final VirtualFile file = psiFile.getVirtualFile();
+    LOG.assertTrue(file != null);
 
     final long fileTimeStamp = file.getTimeStamp();
     final long coverageTimeStamp = suite.getLastCoverageTimeStamp();