01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: */
17:
18: package org.apache.harmony.drlvm.tests.regression.h3228;
19:
20: import junit.framework.TestCase;
21:
22: /* The test checks that the JIT correctly optimizes nested monenter/monexit
23: * pairs when they are enclosed into another monenter/monexit with the same
24: * synchronization object.
25: * The synchronized method sync_run() contains a synchronized statement which
26: * can be safely removed. The issue described in Harmony-3228 caused
27: * a crash during the JIT compilation stage.
28: */
29: public class H3228 extends TestCase {
30:
31: public void test() {
32: boolean b = false;
33: for (int i = 0; i < 1000000000; i++) {
34: b = sync_run();
35: }
36: System.out.println("Test passed");
37: }
38:
39: public synchronized boolean sync_run() {
40: boolean a = false;
41: synchronized (this) {
42: a = !a;
43: }
44: return a;
45: }
46: }
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