| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 groovy.bugs |
| |
| import groovy.test.GroovyTestCase |
| |
| class SynchronizedBytecodeBug extends GroovyTestCase { |
| |
| /** |
| * Groovy's bytecode associated with syncrhonized(foo) construct used to generate invalid bytecode |
| * This test method shows that the standard wait()/notify() works. |
| */ |
| void testSynchronized() { |
| Integer foo = 0 |
| |
| Thread.start{ |
| sleep 100 |
| synchronized(foo) { |
| foo.notify() |
| } |
| } |
| |
| synchronized(foo) { |
| foo.wait() |
| } |
| |
| // if this point is reached, the test worked :-) |
| assert true |
| } |
| |
| /* more tests to ensure a monitor exit is done at the right place */ |
| |
| void testBreakInSynchronized() { |
| Object lock = new Object() |
| while (true) { |
| synchronized(lock) { |
| break |
| } |
| } |
| checkNotHavingAMonitor(lock) |
| } |
| |
| void testContinueInSynchronized() { |
| Object lock = new Object() |
| boolean b = true |
| while (b) { |
| synchronized(lock) { |
| b = false |
| continue |
| } |
| } |
| checkNotHavingAMonitor(lock) |
| } |
| |
| void testReturnInSynchronized() { |
| Object lock = new Object() |
| methodWithReturn(lock) |
| checkNotHavingAMonitor(lock) |
| } |
| |
| def methodWithReturn(lock) { |
| synchronized (lock) { |
| return |
| } |
| } |
| |
| void testBreakInClosureWithSynchronized() { |
| Object lock = new Object() |
| def c = { |
| while (true) { |
| synchronized(lock) { |
| break |
| } |
| } |
| checkNotHavingAMonitor(lock) |
| } |
| c() |
| checkNotHavingAMonitor(lock) |
| } |
| |
| void testContinueInClosureWithSynchronized() { |
| Object lock = new Object() |
| def c = { |
| boolean b = true |
| while (b) { |
| synchronized(lock) { |
| b = false |
| continue |
| } |
| } |
| checkNotHavingAMonitor(lock) |
| } |
| c() |
| checkNotHavingAMonitor(lock) |
| } |
| |
| // GROOVY-4159 |
| void testExceptionInSynchronized() { |
| def obj = 1 |
| try { |
| synchronized(obj) { |
| obj.e |
| } |
| assert false |
| } catch (MissingPropertyException e) { |
| assert true |
| } |
| checkNotHavingAMonitor(obj) |
| } |
| |
| def checkNotHavingAMonitor(Object lock){ |
| // if we call notify* or wait without having the |
| // monitor, we get an exception. |
| try { |
| lock.notifyAll() |
| assert false,"should have no monitor!" |
| } catch (IllegalMonitorStateException imse) { |
| assert true |
| } |
| } |
| } |