WARNING: Cannot update doc in STORE for [9_document] | Exception is 
java.lang.IllegalMonitorStateException
	at java.util.concurrent.locks.ReentrantReadWriteLock$Sync.tryRelease(ReentrantReadWriteLock.java:374)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer.release(AbstractQueuedSynchronizer.java:1260)
	at java.util.concurrent.locks.ReentrantReadWriteLock$WriteLock.unlock(ReentrantReadWriteLock.java:1131)
	at org.basex.core.locks.DBLocking.release(DBLocking.java:215)
	at org.basex.core.Context.unregister(Context.java:287)
	at org.basex.core.Command.execute(Command.java:105)
	at org.basex.api.client.LocalSession.execute(LocalSession.java:132)
	at org.basex.api.client.Session.execute(Session.java:36)
	at basextest.BaseXTest$Writer.updateMetaStore(BaseXTest.java:69)
	at basextest.BaseXTest$Writer.run(BaseXTest.java:87)
	at java.lang.Thread.run(Thread.java:745)

java.lang.IllegalMonitorStateException: Thread already holds one or more locks.
	at org.basex.core.locks.DBLocking.acquire(DBLocking.java:107)
	at org.basex.core.Context.register(Context.java:277)
	at org.basex.core.Command.execute(Command.java:93)
	at org.basex.api.client.LocalSession.execute(LocalSession.java:132)
	at org.basex.api.client.Session.execute(Session.java:36)
	at basextest.BaseXTest$Writer.store(BaseXTest.java:58)
	at basextest.BaseXTest$Writer.run(BaseXTest.java:86)
	at java.lang.Thread.run(Thread.java:745)
avr. 02, 2015 1:14:04 PM basextest.BaseXTest$Writer updateMetaStore
WARNING: Cannot update doc in STORE for [15_document] | Exception is 
java.lang.IllegalMonitorStateException: attempt to unlock read lock, not locked by current thread
	at java.util.concurrent.locks.ReentrantReadWriteLock$Sync.unmatchedUnlockException(ReentrantReadWriteLock.java:447)
	at java.util.concurrent.locks.ReentrantReadWriteLock$Sync.tryReleaseShared(ReentrantReadWriteLock.java:431)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer.releaseShared(AbstractQueuedSynchronizer.java:1340)
	at java.util.concurrent.locks.ReentrantReadWriteLock$ReadLock.unlock(ReentrantReadWriteLock.java:883)
	at org.basex.core.locks.DBLocking.release(DBLocking.java:223)
	at org.basex.core.Context.unregister(Context.java:287)
	at org.basex.core.Command.execute(Command.java:105)
	at org.basex.api.client.LocalSession.execute(LocalSession.java:132)
	at org.basex.api.client.Session.execute(Session.java:36)
	at basextest.BaseXTest$Writer.updateMetaStore(BaseXTest.java:68)
	at basextest.BaseXTest$Writer.run(BaseXTest.java:87)
	at java.lang.Thread.run(Thread.java:745)

avr. 02, 2015 1:14:04 PM basextest.BaseXTest$Writer updateMetaStore
WARNING: Cannot update doc in STORE for [6_document] | Exception is 
java.lang.IllegalMonitorStateException: attempt to unlock read lock, not locked by current thread
	at java.util.concurrent.locks.ReentrantReadWriteLock$Sync.unmatchedUnlockException(ReentrantReadWriteLock.java:447)
	at java.util.concurrent.locks.ReentrantReadWriteLock$Sync.tryReleaseShared(ReentrantReadWriteLock.java:431)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer.releaseShared(AbstractQueuedSynchronizer.java:1340)
	at java.util.concurrent.locks.ReentrantReadWriteLock$ReadLock.unlock(ReentrantReadWriteLock.java:883)
	at org.basex.core.locks.DBLocking.release(DBLocking.java:223)
	at org.basex.core.Context.unregister(Context.java:287)
	at org.basex.core.Command.execute(Command.java:105)
	at org.basex.api.client.LocalSession.execute(LocalSession.java:132)
	at org.basex.api.client.Session.execute(Session.java:36)
	at basextest.BaseXTest$Writer.updateMetaStore(BaseXTest.java:68)
	at basextest.BaseXTest$Writer.run(BaseXTest.java:87)
	at java.lang.Thread.run(Thread.java:745)

Exception in thread "Thread_9" java.lang.IllegalMonitorStateException: Thread already holds one or more locks.
	at org.basex.core.locks.DBLocking.acquire(DBLocking.java:107)
	at org.basex.core.Context.register(Context.java:277)
	at org.basex.core.Command.execute(Command.java:93)
	at org.basex.api.client.LocalSession.execute(LocalSession.java:132)
	at org.basex.api.client.Session.execute(Session.java:36)
	at basextest.BaseXTest$Writer.store(BaseXTest.java:58)
	at basextest.BaseXTest$Writer.run(BaseXTest.java:86)
	at java.lang.Thread.run(Thread.java:745)