IDEA-128685 (test added)

test/org/jetbrains/java/decompiler/SingleClassesTest.java

@@ -50,6 +50,7 @@ public class SingleClassesTest {
   @Test public void testClassTypes() { doTest("TestClassTypes"); }
   @Test public void testClassVar() { doTest("TestClassVar"); }
   @Test public void testClassNestedInitializer() { doTest("TestClassNestedInitializer"); }
+  @Test public void testClassCast() { doTest("TestClassCast"); }
   @Test public void testDeprecations() { doTest("TestDeprecations"); }
   @Test public void testExtendsList() { doTest("TestExtendsList"); }
   @Test public void testMethodParameters() { doTest("TestMethodParameters"); }

testData/results/TestClassCast.dec

@@ -0,0 +1,15 @@
+package pkg;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class TestClassCast {
+   public void test(List var1) {
+      Object var2 = var1;
+      if(var1 != null) {
+         ((List)(var2 = new ArrayList(var1))).add("23");
+      }
+
+      System.out.println(((List)var2).size());
+   }
+}

testData/src/pkg/TestClassCast.java

@@ -0,0 +1,28 @@
+/*
+ * Copyright 2000-2014 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.
+ */
+package pkg;
+
+import java.util.*;
+
+public class TestClassCast {
+  public void test(List list) {
+    List a = list;
+    if (a != null) {
+      (a = new ArrayList(a)).add("23");
+    }
+    System.out.println(a.size());
+  }
+}