diff --git a/platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/PsiChangeHandler.java b/platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/PsiChangeHandler.java
index a477b2430515..afc877a3f6dd 100644
--- a/platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/PsiChangeHandler.java
+++ b/platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/PsiChangeHandler.java
@@ -19,6 +19,7 @@ package com.intellij.codeInsight.daemon.impl;
 import com.intellij.codeInsight.daemon.ChangeLocalityDetector;
 import com.intellij.codeInspection.SuppressionUtil;
 import com.intellij.openapi.Disposable;
+import com.intellij.openapi.application.Application;
 import com.intellij.openapi.application.ApplicationManager;
 import com.intellij.openapi.application.ModalityState;
 import com.intellij.openapi.editor.Document;
@@ -166,8 +167,9 @@ public class PsiChangeHandler extends PsiTreeChangeAdapter implements Disposable
 
   private void updateByChange(PsiElement child, final boolean whitespaceOptimizationAllowed) {
     final Editor editor = FileEditorManager.getInstance(myProject).getSelectedTextEditor();
-    if (editor != null) {
-      ApplicationManager.getApplication().invokeLater(new Runnable() {
+    Application application = ApplicationManager.getApplication();
+    if (editor != null && !application.isUnitTestMode()) {
+      application.invokeLater(new Runnable() {
         public void run() {
           if (myProject.isDisposed()) return;
           EditorMarkupModel markupModel = (EditorMarkupModel)editor.getMarkupModel();
diff --git a/platform/lang-impl/src/com/intellij/codeInsight/intention/EmptyIntentionAction.java b/platform/lang-impl/src/com/intellij/codeInsight/intention/EmptyIntentionAction.java
index 44668a2ef223..8808e65288f1 100644
--- a/platform/lang-impl/src/com/intellij/codeInsight/intention/EmptyIntentionAction.java
+++ b/platform/lang-impl/src/com/intellij/codeInsight/intention/EmptyIntentionAction.java
@@ -32,7 +32,7 @@ import java.util.List;
 public final class EmptyIntentionAction implements IntentionAction{
   private final String myName;
 
-  public EmptyIntentionAction(final String name) {
+  public EmptyIntentionAction(@NotNull String name) {
     myName = name;
   }
 
@@ -63,15 +63,11 @@ public final class EmptyIntentionAction implements IntentionAction{
 
     final EmptyIntentionAction that = (EmptyIntentionAction)o;
 
-    if (myName != null ? !myName.equals(that.myName) : that.myName != null) return false;
-
-    return true;
+    return myName.equals(that.myName);
   }
 
   public int hashCode() {
-    int result;
-    result = (myName != null ? myName.hashCode() : 0);
-    return result;
+    return myName.hashCode();
   }
 
   // used by TeamCity plugin
diff --git a/platform/util/testSrc/com/intellij/util/containers/WeaksTestCase.java b/platform/util/testSrc/com/intellij/util/containers/WeaksTestCase.java
index fb11d803bc07..21924d11e03f 100644
--- a/platform/util/testSrc/com/intellij/util/containers/WeaksTestCase.java
+++ b/platform/util/testSrc/com/intellij/util/containers/WeaksTestCase.java
@@ -45,24 +45,12 @@ public abstract class WeaksTestCase extends TestCase {
 
   protected static void gc() {
     System.gc();
-    try {
-      List<Object> list = new ArrayList<Object>();
-      while (Runtime.getRuntime().freeMemory() > 100000) {
-        list.add(new byte[1000]);
-      }
-
-      System.gc();
-      list = null;
-    }
-    catch (OutOfMemoryError e) {
-      // ignore
-    }
     System.gc();
 
     WeakReference<Object> weakReference = new WeakReference<Object>(new Object());
     do {
       System.gc();
-    }
+    } 
     while (weakReference.get() != null);
   }