"Grinder thread 0" daemon prio=6 tid=0x475328c8 nid=0x8a4 in Object.wait() [0x4924e000..0x4924fce8]
	at java.lang.Object.wait(Native Method)
	- waiting on <0x085588f8> (a EDU.oswego.cs.dl.util.concurrent.WriterPreferenceReadWriteLock$ReaderLock)
	at java.lang.Object.wait(Object.java:474)
	at EDU.oswego.cs.dl.util.concurrent.WriterPreferenceReadWriteLock$ReaderLock.acquire(Unknown Source)
	- locked <0x085588f8> (a EDU.oswego.cs.dl.util.concurrent.WriterPreferenceReadWriteLock$ReaderLock)
	at org.apache.jackrabbit.core.state.SharedItemStateManager.acquireReadLock(SharedItemStateManager.java:1453)
	at org.apache.jackrabbit.core.state.SharedItemStateManager.hasItemState(SharedItemStateManager.java:293)
	at org.apache.jackrabbit.core.version.VersionItemStateProvider.hasItemState(VersionItemStateProvider.java:132)
	at org.apache.jackrabbit.core.state.SharedItemStateManager.hasItemState(SharedItemStateManager.java:315)
	at org.apache.jackrabbit.core.state.LocalItemStateManager.hasItemState(LocalItemStateManager.java:180)
	at org.apache.jackrabbit.core.state.SessionItemStateManager.getItemState(SessionItemStateManager.java:174)
	at org.apache.jackrabbit.core.HierarchyManagerImpl.getItemState(HierarchyManagerImpl.java:119)
	at org.apache.jackrabbit.core.HierarchyManagerImpl.getPath(HierarchyManagerImpl.java:356)
	at org.apache.jackrabbit.core.CachingHierarchyManager.getPath(CachingHierarchyManager.java:224)
	at org.apache.jackrabbit.core.lock.LockManagerImpl.getPath(LockManagerImpl.java:608)
	at org.apache.jackrabbit.core.lock.LockManagerImpl.getLockInfo(LockManagerImpl.java:377)
	at org.apache.jackrabbit.core.lock.XAEnvironment.getLockInfo(XAEnvironment.java:210)
	at org.apache.jackrabbit.core.lock.XALockManager.checkLock(XALockManager.java:154)
	at org.apache.jackrabbit.core.NodeImpl.checkLock(NodeImpl.java:4276)
	at org.apache.jackrabbit.core.NodeImpl.checkin(NodeImpl.java:3004)

"Grinder thread 1" daemon prio=6 tid=0x47532a50 nid=0xf40 in Object.wait() [0x4928e000..0x4928fd68]
	at java.lang.Object.wait(Native Method)
	- waiting on <0x086e9e48> (a EDU.oswego.cs.dl.util.concurrent.ReentrantLock)
	at java.lang.Object.wait(Object.java:474)
	at EDU.oswego.cs.dl.util.concurrent.ReentrantLock.acquire(Unknown Source)
	- locked <0x086e9e48> (a EDU.oswego.cs.dl.util.concurrent.ReentrantLock)
	at org.apache.jackrabbit.core.lock.LockManagerImpl.acquire(LockManagerImpl.java:617)
	at org.apache.jackrabbit.core.lock.LockManagerImpl.nodeAdded(LockManagerImpl.java:856)
	at org.apache.jackrabbit.core.lock.LockManagerImpl.onEvent(LockManagerImpl.java:761)
	at org.apache.jackrabbit.core.observation.EventConsumer.consumeEvents(EventConsumer.java:231)
	at org.apache.jackrabbit.core.observation.ObservationDispatcher.dispatchEvents(ObservationDispatcher.java:201)
	at org.apache.jackrabbit.core.observation.EventStateCollection.dispatch(EventStateCollection.java:424)
	at org.apache.jackrabbit.core.state.SharedItemStateManager$Update.end(SharedItemStateManager.java:743)
	at org.apache.jackrabbit.core.state.XAItemStateManager.commit(XAItemStateManager.java:162)
	at org.apache.jackrabbit.core.TransactionContext.commit(TransactionContext.java:177)
	- locked <0x0a5c3268> (a org.apache.jackrabbit.core.TransactionContext)
	at org.apache.jackrabbit.core.XASessionImpl.commit(XASessionImpl.java:339)