com.sun.appserv.connectors.internal.api.PoolingException: java.lang.NullPointerException

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java.lang.NullPointerException
com.sun.appserv.connectors.internal.api.PoolingException: java.lang.NullPointerException
at com.sun.enterprise.resource.ConnectorXAResource.getResourceHandle(ConnectorXAResource.java:255)
at com.sun.enterprise.resource.ConnectorXAResource.end(ConnectorXAResource.java:159)
at com.sun.enterprise.resource.rm.SystemResourceManagerImpl.delistResource(SystemResourceManagerImpl.java:145)
at com.sun.enterprise.resource.pool.PoolManagerImpl.resourceClosed(PoolManagerImpl.java:381)
at com.sun.gjc.spi.ManagedConnection.connectionClosed(ManagedConnection.java:784)
at com.sun.gjc.spi.base.ConnectionHolder.close(ConnectionHolder.java:217)
at com.sun.gjc.spi.jdbc40.ConnectionHolder40.close(ConnectionHolder40.java:587)
at org.hibernate.jdbc.ConnectionManager.closeConnection(ConnectionManager.java:474)
at org.hibernate.jdbc.ConnectionManager.aggressiveRelease(ConnectionManager.java:429)
at org.hibernate.jdbc.ConnectionManager.afterStatement(ConnectionManager.java:304)
at org.hibernate.jdbc.AbstractBatcher.closePreparedStatement(AbstractBatcher.java:572)
at org.hibernate.jdbc.AbstractBatcher.closeStatement(AbstractBatcher.java:291)
at org.hibernate.jdbc.AbstractBatcher.closeQueryStatement(AbstractBatcher.java:307)
at org.hibernate.jdbc.AbstractBatcher.closeQueryStatement(AbstractBatcher.java:234)
at org.hibernate.loader.Loader.doQuery(Loader.java:854)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:274)
at org.hibernate.loader.Loader.doList(Loader.java:2533)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2276)
at org.hibernate.loader.Loader.list(Loader.java:2271)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1716)
at org.hibernate.impl.CriteriaImpl.list(CriteriaImpl.java:347)
at my.own.dao.package.MyOwnDAO.selaa(MyOwnDAO.java:126)
at my.own.package.MyClass.selaa(MyClass.java:42)
at sun.reflect.GeneratedMethodAccessor606.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1052)
at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1124)
at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:5388)
at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:619)
at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:800)
at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:571)
at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.doAround(SystemInterceptorProxy.java:162)
at sun.reflect.GeneratedMethodAccessor117.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:861)
at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:800)
at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:370)
at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:5360)
at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:5348)
at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:214)
at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:88)
at undefined.$Proxy246.selaa(Unknown Source)
at my.own.package.__EJB31_Generated__MyOwnClass__Intf____Bean__.selaa(Unknown Source)
at my.another.package.AnotherClass.onMessage(AnotherClass.java:145)
at sun.reflect.GeneratedMethodAccessor604.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1052)
at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1124)
at com.sun.ejb.containers.BaseContainer.invokeTargetBeanMethod(BaseContainer.java:4180)
at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:5368)
at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:5348)
at com.sun.ejb.containers.MessageBeanContainer.deliverMessage(MessageBeanContainer.java:1099)
at undefined.$Proxy336.onMessage(Unknown Source)
at com.sun.messaging.jms.ra.OnMessageRunner.run(OnMessageRunner.java:260)
at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.performWork(ThreadPoolImpl.java:497)

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