Testing contended locking. Locker thread 1 for NamedLock[Lock testLock] contended-LOCKING NamedLock[Lock testLock] Locker thread 1 for NamedLock[Lock testLock] LOCKED NamedLock[Lock testLock] Testing park. ParkThread start-monitor-wait NamedLock[Parking blocker object] timeout: 1 ParkThread monitor-waited NamedLock[Parking blocker object] timed_out: true Testing monitor wait. Locker thread 2 for NamedLock[Lock testWait] start-monitor-wait NamedLock[Lock testWait] timeout: 0 Locker thread 2 for NamedLock[Lock testWait] monitor-waited NamedLock[Lock testWait] timed_out: false Testing monitor timed wait. Locker thread 4 for NamedLock[Lock testTimedWait] start-monitor-wait NamedLock[Lock testTimedWait] timeout: 3600000 Locker thread 4 for NamedLock[Lock testTimedWait] monitor-waited NamedLock[Lock testTimedWait] timed_out: false Testing monitor timed with timeout. Waiting for 10 seconds. Locker thread 6 for NamedLock[Lock testTimedWaitTimeout] start-monitor-wait NamedLock[Lock testTimedWaitTimeout] timeout: 10000 Locker thread 6 for NamedLock[Lock testTimedWaitTimeout] monitor-waited NamedLock[Lock testTimedWaitTimeout] timed_out: true Wait finished with timeout. Waiting on an unlocked monitor. Unlocked wait thread: start-monitor-wait NamedLock[Lock testUnlockedWait] timeout: 0 Caught exception: java.lang.reflect.InvocationTargetException Caused by: class java.lang.IllegalMonitorStateException Waiting with an illegal argument (negative timeout) Locker thread 7 for NamedLock[Lock testIllegalWait] start-monitor-wait NamedLock[Lock testIllegalWait] timeout: -100 Caught exception: art.Monitors$TestException: Exception thrown by other thread! Caused by: art.Monitors$TestException: Got an error while performing action TIMED_WAIT Caused by: class java.lang.IllegalArgumentException Interrupt a monitor being waited on. Locker thread 8 for NamedLock[Lock testInteruptWait] start-monitor-wait NamedLock[Lock testInteruptWait] timeout: 0 Locker thread 8 for NamedLock[Lock testInteruptWait] monitor-waited NamedLock[Lock testInteruptWait] timed_out: false Caught exception: art.Monitors$TestException: Exception thrown by other thread! Caused by: art.Monitors$TestException: Got an error while performing action WAIT Caused by: class java.lang.InterruptedException