Giters

puniverse / quasar

Fibers, Channels and Actors for the JVM

Home Page:http://docs.paralleluniverse.co/quasar/

Geek Repo:Geek Repo

Github PK Tool:Github PK Tool

NullPointException throw in co.paralleluniverse.strands.concurrent.ReentrantLock.lock() invokation

kimffy24 opened this issue · comments

commented

[ERROR] Failed to execute the taskContinueAction, asyncActionName: PublishEventAsync, contextInfo: [eventStream: [messageId=2d2d4bf920ed3ffff5825e7d8, commandId=2abc4bf920ed3ffff5825b878, aggregateRootId=4ffc3bf920e6d5fef7e3753b8, aggregateRootTypeName=pro.jiefzz.ejoker.demo.simple.transfer.domain.bankAccount.BankAccount, version=3, events=pro.jiefzz.ejoker.demo.simple.transfer.domain.bankAccount.domainEvents.TransactionPreparationAddedEvent|, items=CommandReplyAddress:null|]]
java.lang.NullPointerException
at co.paralleluniverse.strands.Strand.park(Strand.java:536)
at co.paralleluniverse.strands.concurrent.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:838)
at co.paralleluniverse.strands.concurrent.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:872)
at co.paralleluniverse.strands.concurrent.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1203)
at co.paralleluniverse.strands.concurrent.ReentrantLock$NonfairSync.lock(ReentrantLock.java:207)
at co.paralleluniverse.strands.concurrent.ReentrantLock.lock(ReentrantLock.java:285)
at com.jiefzz.ejoker.commanding.ProcessingCommandMailbox.completeMessage(ProcessingCommandMailbox.java:129)
at com.jiefzz.ejoker.commanding.ProcessingCommandMailbox.completeMessageAsync(ProcessingCommandMailbox.java:123)
at com.jiefzz.ejoker.eventing.impl.DefaultEventService.completeCommandAsync(DefaultEventService.java:513)
at com.jiefzz.ejoker.eventing.impl.DefaultEventService.lambda$publishDomainEventAsync$31(DefaultEventService.java:482)
at com.jiefzz.ejoker.z.common.io.IOHelper.taskContinueAction(IOHelper.java:162)
at com.jiefzz.ejoker.z.common.io.IOHelper.tryAsyncAction2(IOHelper.java:108)
at com.jiefzz.ejoker.z.common.io.IOHelper.tryAsyncAction2(IOHelper.java:90)
at com.jiefzz.ejoker.eventing.impl.DefaultEventService.publishDomainEventAsync(DefaultEventService.java:468)
at com.jiefzz.ejoker.eventing.impl.DefaultEventService.publishDomainEventAsync(DefaultEventService.java:152)
at com.jiefzz.ejoker.eventing.impl.DefaultEventService.lambda$null$11(DefaultEventService.java:236)
at com.jiefzz.ejoker.z.common.task.context.AbstractNormalWorkerGroupService.lambda$submitInternal$0(AbstractNormalWorkerGroupService.java:65)
at com.jiefzz.equasar.QuasarFiberExector.lambda$execute$bdec3e64$1(QuasarFiberExector.java:118)
at co.paralleluniverse.fibers.Fiber.run(Fiber.java:1097)
at co.paralleluniverse.fibers.Fiber.run1(Fiber.java:1092)
at co.paralleluniverse.fibers.Fiber.exec(Fiber.java:788)
at co.paralleluniverse.fibers.FiberForkJoinScheduler$FiberForkJoinTask.exec1(FiberForkJoinScheduler.java:271)
at co.paralleluniverse.concurrent.forkjoin.ParkableForkJoinTask.doExec(ParkableForkJoinTask.java:117)
at co.paralleluniverse.concurrent.forkjoin.ParkableForkJoinTask.exec(ParkableForkJoinTask.java:74)
at jsr166e.ForkJoinTask.doExec(ForkJoinTask.java:261)
at jsr166e.ForkJoinPool$WorkQueue.pollAndExecAll(ForkJoinPool.java:902)
at jsr166e.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:995)
at jsr166e.ForkJoinPool.runWorker(ForkJoinPool.java:1628)
at jsr166e.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)

The Scene is producer send a message and this message should be handled and should be confirmed. All the process of handling and confirm are in Fiber's context, And every processing are all in different Fiber. Now this Error occur in confirm process.

In com.jiefzz.ejoker.commanding.ProcessingCommandMailbox.completeMessage(ProcessingCommandMailbox.java:129) I invoke ReentrantLock.lock.
There a NullPointException throws while in concurrent execution.

lock object declare in
https://github.com/kimffy24/EJoker/blob/quasar2/src/main/java/com/jiefzz/ejoker/commanding/ProcessingCommandMailbox.java#L35
lock only use at
https://github.com/kimffy24/EJoker/blob/quasar2/src/main/java/com/jiefzz/ejoker/commanding/ProcessingCommandMailbox.java#L129

commented

I found thad NPE will throw while an uninstrumented method invoke an instrumented method and Fiber.park() is called in the instrumented method.