diff --git a/plugins/java-decompiler/plugin/test/org/jetbrains/java/decompiler/IdeaDecompilerTest.kt b/plugins/java-decompiler/plugin/test/org/jetbrains/java/decompiler/IdeaDecompilerTest.kt
index e222c5b70469..4b0eed6e337d 100644
--- a/plugins/java-decompiler/plugin/test/org/jetbrains/java/decompiler/IdeaDecompilerTest.kt
+++ b/plugins/java-decompiler/plugin/test/org/jetbrains/java/decompiler/IdeaDecompilerTest.kt
@@ -1,17 +1,5 @@
 /*
- * Copyright 2000-2017 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.
+ * Copyright 2000-2017 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
  */
 package org.jetbrains.java.decompiler
 
@@ -181,9 +169,7 @@ class IdeaDecompilerTest : LightCodeInsightFixtureTestCase() {
         println(file.path)
       }
       else if (file.fileType === StdFileTypes.CLASS && !file.name.contains('$')) {
-        val clsFile = psiManager.findFile(file)!!
-        val mirror = (clsFile as ClsFileImpl).mirror
-        val decompiled = mirror.text
+        val decompiled = (psiManager.findFile(file)!! as ClsFileImpl).mirror.text
         assertTrue(file.path, decompiled.startsWith(IdeaDecompiler.BANNER) || file.name == "package-info.class")
 
         // check that no mapped line number is on an empty line
@@ -196,9 +182,9 @@ class IdeaDecompilerTest : LightCodeInsightFixtureTestCase() {
         }
       }
       else if (ArchiveFileType.INSTANCE == file.fileType) {
-        val jarFile = JarFileSystem.getInstance().getRootByLocal(file)
-        if (jarFile != null) {
-          VfsUtilCore.visitChildrenRecursively(jarFile, this)
+        val jarRoot = JarFileSystem.getInstance().getRootByLocal(file)
+        if (jarRoot != null) {
+          VfsUtilCore.visitChildrenRecursively(jarRoot, this)
         }
       }