我在使用 JLupin 存儲隊列時遇到了問題。完成后檢索任務(wù)時出現(xiàn)問題。JLupin 配置在 2 個集群上，每個集群 3 臺服務(wù)器。Jlupin QueueMicroservice 安裝在每個節(jié)點上。先感謝您。    2019-02-11 11:31:33,403 | Error | pool-4-thread-483 |  | com.jlupin.impl.processor.strategy.impl.JLupinDefaultServiceProcessorInvokeStrategyImpl | MESSAGE ID:1 SESSION ID:8559396366643622404 REQUEST ID:5589808491859060249 METHOD:invoke LINE:136 LOG:an error in JLupinDefaultServiceProcessorImpl occurred caused by:java.lang.NullPointerException: null2019-02-11 11:31:33,409 | Error | pool-4-thread-483 |  | com.jlupin.impl.entrypoint.microservice.queue.JLupinQueueMicroserviceEntryPointImpl$3 | MESSAGE ID:5 METHOD:call LINE:681 LOG:an error occurred during executing task described by session id:8559396366643622404 and request id:5589808491859060249 caused by:com.jlupin.interfaces.client.delegator.exception.JLupinDelegatorException: an unexpected error occurred during communication caused by:        at com.jlupin.impl.client.delegator.balance.JLupinQueueLoadBalancerDelegatorImpl.doPutTaskResultCommunicationSequence(JLupinQueueLoadBalancerDelegatorImpl.java:738) ~[?:?]        at com.jlupin.impl.client.delegator.balance.JLupinQueueLoadBalancerDelegatorImpl.access$3200(JLupinQueueLoadBalancerDelegatorImpl.java:32) ~[?:?]        at com.jlupin.impl.client.delegator.balance.JLupinQueueLoadBalancerDelegatorImpl$10.call(JLupinQueueLoadBalancerDelegatorImpl.java:640) ~[?:?]        at com.jlupin.impl.client.delegator.helper.repeater.JLupinQueueLoadBalancerDelegatorRepeaterHelper.doWithRepeat(JLupinQueueLoadBalancerDelegatorRepeaterHelper.java:36) ~[?:?]        at com.jlupin.impl.client.delegator.balance.JLupinQueueLoadBalancerDelegatorImpl.doPutTaskResultCommunicationWrappedSequence(JLupinQueueLoadBalancerDelegatorImpl.java:637) ~[?:?]