diff --git a/java/java-tests/testSrc/com/intellij/psi/PsiModificationTrackerTest.java b/java/java-tests/testSrc/com/intellij/psi/PsiModificationTrackerTest.java
index 0dc335947726..7cba4a83f4a3 100644
--- a/java/java-tests/testSrc/com/intellij/psi/PsiModificationTrackerTest.java
+++ b/java/java-tests/testSrc/com/intellij/psi/PsiModificationTrackerTest.java
@@ -3,8 +3,10 @@ package com.intellij.psi;
 import com.intellij.ide.highlighter.JavaFileType;
 import com.intellij.openapi.command.WriteCommandAction;
 import com.intellij.openapi.editor.SelectionModel;
+import com.intellij.openapi.fileEditor.FileEditorManager;
 import com.intellij.openapi.vfs.VirtualFile;
 import com.intellij.psi.util.PsiModificationTracker;
+import com.intellij.testFramework.IdeaTestCase;
 import com.intellij.testFramework.fixtures.LightPlatformCodeInsightFixtureTestCase;
 import com.intellij.util.Processor;
 import org.jetbrains.annotations.NonNls;
@@ -15,6 +17,12 @@ import java.io.IOException;
  * @author Dmitry Avdeev
  */
 public class PsiModificationTrackerTest extends LightPlatformCodeInsightFixtureTestCase {
+  @Override
+  public void setUp() throws Exception {
+    IdeaTestCase.initPlatformPrefix();
+    super.setUp();
+  }
+
   public void testAnnotationNotChanged() throws Exception {
     doReplaceTest("@SuppressWarnings(\"zz\")\n" +
                   "public class Foo { <selection></selection>}",
@@ -86,6 +94,7 @@ public class PsiModificationTrackerTest extends LightPlatformCodeInsightFixtureT
                try {
                  final VirtualFile vFile = psiFile.getVirtualFile();
                  assert vFile != null : psiFile;
+                 FileEditorManager.getInstance(getProject()).closeFile(vFile);
                  vFile.delete(this);
                }
                catch (IOException e) {