Radim Vansa created ISPN-2458: --------------------------------- Summary: Double unlock during rollback breaks reference counting Key: ISPN-2458 URL: https://issues.jboss.org/browse/ISPN-2458 Project: Infinispan Issue Type: Bug Components: Locking and Concurrency Affects Versions: 5.2.0.Beta3 Reporter: Radim Vansa Assignee: Mircea Markus Priority: Critical Using pessimistic locking, when a transaction is rolled-back, {{RollbackCommand}} and then {{TxCompletionNotification}} commands are sent to the primary owner. When the order of these two changes, the locks are unlocked twice: first by {{TxCompletionNotification}} calling {{LockManagerImpl.unlock(Collection<Object> lockedKeys, Object lockOwner)}} and then by {{AbstractTxLockingInterceptor.visitRollbackCommand}} calling {{LockManagerImpl.unlockAll(...)}} When the lock is acquired after the first unlock, the second unlock fails with IllegalMonitorStateException in {{OwnableReentrantLock.tryAcquire(...)}}, but the reference count is still decremented in {{AbstractPerEntryLockContainer.releaseLock(...)}}. This results in further IllegalStateException: Negative reference count for lock -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira