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liuzhe02 / bigbluebutton

Automatically exported from code.google.com/p/bigbluebutton
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Deskshare Java applet showed some errors upon shutdown #1714

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
The following errors appeared in the Java Console when the deskshare was 
stopped:

Exception in thread "pool-1-thread-1" java.lang.IllegalMonitorStateException 
at java.util.concurrent.locks.ReentrantLock$Sync.tryRelease(Unknown Source) 
at java.util.concurrent.locks.AbstractQueuedSynchronizer.release(Unknown 
Source) 
at java.util.concurrent.locks.ReentrantLock.unlock(Unknown Source) 
at java.util.concurrent.LinkedBlockingQueue.take(Unknown Source) 
at java.util.concurrent.ThreadPoolExecutor.getTask(Unknown Source) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) 
at java.lang.Thread.run(Unknown Source) 
Exception in thread "pool-2-thread-1" java.lang.IllegalMonitorStateException 
at java.util.concurrent.locks.ReentrantLock$Sync.tryRelease(Unknown Source) 
at java.util.concurrent.locks.AbstractQueuedSynchronizer.release(Unknown 
Source) 
at java.util.concurrent.locks.ReentrantLock.unlock(Unknown Source) 
at java.util.concurrent.LinkedBlockingQueue.take(Unknown Source) 
at java.util.concurrent.ThreadPoolExecutor.getTask(Unknown Source) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) 
at java.lang.Thread.run(Unknown Source) 
Exception in thread "pool-4-thread-1" java.lang.IllegalMonitorStateException 
at java.util.concurrent.locks.ReentrantLock$Sync.tryRelease(Unknown Source) 
at java.util.concurrent.locks.AbstractQueuedSynchronizer.release(Unknown 
Source) 
at java.util.concurrent.locks.ReentrantLock.unlock(Unknown Source) 
at java.util.concurrent.LinkedBlockingQueue.take(Unknown Source) 
at java.util.concurrent.ThreadPoolExecutor.getTask(Unknown Source) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) 
at java.lang.Thread.run(Unknown Source) 
Exception in thread "pool-5-thread-1" java.lang.IllegalMonitorStateException 
at java.util.concurrent.locks.ReentrantLock$Sync.tryRelease(Unknown Source) 
at java.util.concurrent.locks.AbstractQueuedSynchronizer.release(Unknown 
Source) 
at java.util.concurrent.locks.ReentrantLock.unlock(Unknown Source) 
at java.util.concurrent.LinkedBlockingQueue.take(Unknown Source) 
at java.util.concurrent.ThreadPoolExecutor.getTask(Unknown Source) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) 
at java.lang.Thread.run(Unknown Source)

Original issue reported on code.google.com by ritza...@gmail.com on 27 Jan 2014 at 4:53

GoogleCodeExporter commented 9 years ago 
I have also faced the same problem on Internet Explorer with the following when 
screen sharing is stopped. I see the same problem on demo.bigbluebutton.org also

Exception in thread "pool-1-thread-1" Exception in thread "pool-2-thread-1" 
java.lang.IllegalMonitorStateException
    at java.util.concurrent.locks.ReentrantLock$Sync.tryRelease(Unknown Source)
    at java.util.concurrent.locks.AbstractQueuedSynchronizer.release(Unknown Source)
    at java.util.concurrent.locks.ReentrantLock.unlock(Unknown Source)
    at java.util.concurrent.LinkedBlockingQueue.take(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.getTask(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
java.lang.IllegalMonitorStateException
    at java.util.concurrent.locks.ReentrantLock$Sync.tryRelease(Unknown Source)
    at java.util.concurrent.locks.AbstractQueuedSynchronizer.release(Unknown Source)
    at java.util.concurrent.locks.ReentrantLock.unlock(Unknown Source)
    at java.util.concurrent.LinkedBlockingQueue.take(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.getTask(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

Original comment by gowtham1...@gmail.com on 4 Sep 2014 at 1:02

GoogleCodeExporter commented 9 years ago

Original comment by ffdixon@gmail.com on 4 Apr 2015 at 1:26