| Problem while doing Multithreading and using EntityManager [message #1787417] |
Fri, 25 May 2018 01:12 |
Eclipse User |
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I am having my application deployed in EJBContainer in glassfish server. I am calling one method using Callable and future in session bean, and in this method i'm using EntityManager for some transaction but getting an NullPointerException for whenever any call to EntityManager is there. Below is the error stack trace::
Severe: java.lang.NullPointerException at com.sun.enterprise.container.common.impl.EntityManagerWrapper.getNonTxEMsFromCurrentInvocation(EntityManagerWrapper.java:276) at com.sun.enterprise.container.common.impl.EntityManagerWrapper.getNonTxEMFromCurrentInvocation(EntityManagerWrapper.java:260) at com.sun.enterprise.container.common.impl.EntityManagerWrapper._getDelegate(EntityManagerWrapper.java:213) at com.sun.enterprise.container.common.impl.EntityManagerWrapper.createQuery(EntityManagerWrapper.java:455) at LogisticsEngineSessionBean.getAllPackSerialsForProcess(LogisticsEngineSessionBean.java:3137) at LogisticsEngineSessionBean.processSalesOutLines(LogisticsEngineSessionBean.java:3462) at LogisticsEngineSessionBean.lambda$updateSKULocationStatusOnSell$0(LogisticsEngineSessionBean.java:2972) at LogisticsEngineSessionBean$$Lambda$7/1138463255.call(Unknown Source) at java.util.concurrent.ForkJoinTask$AdaptedCallable.exec(ForkJoinTask.java:1424) at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289) at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056) at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1689) at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)
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