Bug 353078

Description Eike Stepper 2011-07-26 03:35:07 EDT

Cloned from: 353076: [CDO] Failure when trying to unlock a collection of elements
https://bugs.eclipse.org/bugs/show_bug.cgi?id=353076

This bug has been discussed in the following post : http://www.eclipse.org/forums/index.php/t/223982/

 I've got an issue when trying to unlock more 
than one element at a time :

if I write :

transaction.unlockObjects(elementsToUnlock, CDO_WRITE_LOCK);


I get the following exceptions :

org.eclipse.net4j.signal.RemoteException: 
java.lang.IllegalMonitorStateException
at 
org.eclipse.net4j.signal.RequestWithConfirmation.getRemoteException(RequestWithConfirmation.java:139)
at 
org.eclipse.net4j.signal.RequestWithConfirmation.setRemoteException(RequestWithConfirmation.java:128)
at 
org.eclipse.net4j.signal.SignalProtocol.handleRemoteException(SignalProtocol.java:423)
at 
org.eclipse.net4j.signal.RemoteExceptionIndication.indicating(RemoteExceptionIndication.java:63)
at org.eclipse.net4j.signal.Indication.doExtendedInput(Indication.java:55)
at org.eclipse.net4j.signal.Signal.doInput(Signal.java:326)
at org.eclipse.net4j.signal.Indication.execute(Indication.java:49)
at org.eclipse.net4j.signal.Signal.runSync(Signal.java:251)
at org.eclipse.net4j.signal.Signal.run(Signal.java:147)
at 
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:651)
at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:676)
at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.IllegalMonitorStateException
at 
org.eclipse.net4j.util.concurrent.RWLockManager.unlock(RWLockManager.java:284)
at 
org.eclipse.net4j.util.concurrent.RWLockManager.unlock(RWLockManager.java:139)
at 
org.eclipse.emf.cdo.internal.server.LockManager.unlock(LockManager.java:192)
at 
org.eclipse.emf.cdo.server.internal.net4j.protocol.UnlockObjectsIndication.indicating(UnlockObjectsIndication.java:68)
at 
org.eclipse.emf.cdo.server.internal.net4j.protocol.CDOServerIndication.indicating(CDOServerIndication.java:84)
at 
org.eclipse.net4j.signal.IndicationWithResponse.doExtendedInput(IndicationWithResponse.java:90)
at org.eclipse.net4j.signal.Signal.doInput(Signal.java:326)
at 
org.eclipse.net4j.signal.IndicationWithResponse.execute(IndicationWithResponse.java:63)
at 
org.eclipse.emf.cdo.server.internal.net4j.protocol.CDOServerWriteIndication.execute(CDOServerWriteIndication.java:39)


But if I unlock my elements one by one :

for (CDOObject unlockedElement : unlockedElements) {
	transaction.unlockObjects(unlockedElements, CDO_WRITE_LOCK);
}


Everything works fine.