Concurrent access timeout on StatefulBean when invoked via StatelessBean ------------------------------------------------------------------------ Key: WFLY-9492 URL: https://issues.jboss.org/browse/WFLY-9492 Project: WildFly Issue Type: Bug Components: EJB Affects Versions: 10.1.0.Final, 11.0.0.Final Reporter: Thies Rubarth Attachments: sfsbLock.zip We are having issues with a stateful bean that is invoked serveral times in a request to calculate things. We have a StatelessBean, that is called via REST and calls another StatelessBean which calls the StatefulBean which is request scoped. When we have parallel requests it comes to ConcurrentAccessTimeoutExceptions on the StatefulBean, although we shoudn't have concurrent access since the Bean is request scoped. This is the stacktrace we get: Caused by: javax.ejb.ConcurrentAccessTimeoutException: WFLYEJB0228: EJB 3.1 FR 4.3.14.1 concurrent access timeout on StatefulBean - could not obtain lock within 5000 MILLISECONDS at org.jboss.as.ejb3.component.stateful.StatefulSessionSynchronizationInterceptor.processInvocation(StatefulSessionSynchronizationInterceptor.java:94) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.invocation.InterceptorContext$Invocation.proceed(InterceptorContext.java:437) at org.jboss.weld.ejb.AbstractEJBRequestScopeActivationInterceptor.aroundInvoke(AbstractEJBRequestScopeActivationInterceptor.java:64) at org.jboss.as.weld.ejb.EjbRequestScopeActivationInterceptor.processInvocation(EjbRequestScopeActivationInterceptor.java:83) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ee.concurrent.ConcurrentContextInterceptor.processInvocation(ConcurrentContextInterceptor.java:45) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.invocation.InitialInterceptor.processInvocation(InitialInterceptor.java:21) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) at org.jboss.as.ee.component.interceptors.ComponentDispatcherInterceptor.processInvocation(ComponentDispatcherInterceptor.java:52) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.component.stateful.StatefulComponentInstanceInterceptor.processInvocation(StatefulComponentInstanceInterceptor.java:59) at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:340) at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInCallerTx(CMTTxInterceptor.java:254) ... 213 more