cleanup

platform/testFramework/src/com/intellij/testFramework/PlatformTestCase.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.
@@ -789,7 +789,8 @@ public abstract class PlatformTestCase extends UsefulTestCase implements DataPro
     return createTempDir(getTestName(true), refresh);
   }
 
-  protected File createTempFile(String name, @Nullable String text) throws IOException {
+  @NotNull
+  protected File createTempFile(@NotNull String name, @Nullable String text) throws IOException {
     File directory = createTempDirectory();
     File file = new File(directory, name);
     if (!file.createNewFile()) {