diff --git a/java/java-tests/testSrc/com/intellij/slicer/SliceBackwardTest.java b/java/java-tests/testSrc/com/intellij/slicer/SliceBackwardTest.java
index edfa73b4a5ce..44cecdbfd029 100644
--- a/java/java-tests/testSrc/com/intellij/slicer/SliceBackwardTest.java
+++ b/java/java-tests/testSrc/com/intellij/slicer/SliceBackwardTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2015 JetBrains s.r.o.
+ * Copyright 2000-2016 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.
@@ -30,7 +30,7 @@ import java.util.Map;
  * @author cdr
  */
 public class SliceBackwardTest extends SliceTestCase {
-  private final TIntObjectHashMap<IntArrayList> myFlownOffsets = new TIntObjectHashMap<IntArrayList>();
+  private final TIntObjectHashMap<IntArrayList> myFlownOffsets = new TIntObjectHashMap<>();
 
   private void doTest() throws Exception {
     configureByFile("/codeInsight/slice/backward/"+getTestName(false)+".java");
diff --git a/java/java-tests/testSrc/com/intellij/slicer/SliceForwardTest.java b/java/java-tests/testSrc/com/intellij/slicer/SliceForwardTest.java
index 9348a1cb4c8e..978b30a5f39c 100644
--- a/java/java-tests/testSrc/com/intellij/slicer/SliceForwardTest.java
+++ b/java/java-tests/testSrc/com/intellij/slicer/SliceForwardTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2013 JetBrains s.r.o.
+ * Copyright 2000-2016 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.
@@ -31,7 +31,7 @@ import java.util.Map;
  * @author cdr
  */
 public class SliceForwardTest extends DaemonAnalyzerTestCase {
-  private final TIntObjectHashMap<IntArrayList> myFlownOffsets = new TIntObjectHashMap<IntArrayList>();
+  private final TIntObjectHashMap<IntArrayList> myFlownOffsets = new TIntObjectHashMap<>();
 
   private void dotest() throws Exception {
     configureByFile("/codeInsight/slice/forward/"+getTestName(false)+".java");
diff --git a/java/java-tests/testSrc/com/intellij/slicer/SliceTreeTest.java b/java/java-tests/testSrc/com/intellij/slicer/SliceTreeTest.java
index 319ef2d95041..e8bccf44123e 100644
--- a/java/java-tests/testSrc/com/intellij/slicer/SliceTreeTest.java
+++ b/java/java-tests/testSrc/com/intellij/slicer/SliceTreeTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2015 JetBrains s.r.o.
+ * Copyright 2000-2016 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.
@@ -97,7 +97,7 @@ public class SliceTreeTest extends SliceTestCase {
       if (node.getDuplicate() != null) {
         PsiElement element = node.getValue().getElement();
         hasDups.add(element.getTextRange().getStartOffset());
-        assertTrue(element instanceof PsiParameter && ((PsiParameter)element).getName().equals("i") || element instanceof PsiLiteralExpression);
+        assertTrue(element instanceof PsiParameter && "i".equals(((PsiParameter)element).getName()) || element instanceof PsiLiteralExpression);
       }
     }
 
@@ -121,7 +121,7 @@ public class SliceTreeTest extends SliceTestCase {
         int i = hasDups.indexOf(offset);
         assertTrue(i != -1);
         hasDups.remove(i);
-        assertTrue(element instanceof PsiParameter && ((PsiParameter)element).getName().equals("i") || element instanceof PsiLiteralExpression);
+        assertTrue(element instanceof PsiParameter && "i".equals(((PsiParameter)element).getName()) || element instanceof PsiLiteralExpression);
       }
     }
     assertTrue(hasDups.isEmpty());