[jboss-jira] [JBoss JIRA] (WFLY-3396) NPE in TimerResourceDefinition

NPE in TimerResourceDefinition ------------------------------ Key: WFLY-3396 URL: https://issues.jboss.org/browse/WFLY-3396 Project: WildFly Issue Type: Bug Security Level: Public(Everyone can see) Components: EJB Affects Versions: 8.1.0.CR2 Environment: JDK 1.7.0_55 MacOSX PostgreSQL 9.1 Wildfly 8.1.0.CR2 Arquillian 1.1.2.Final-wildfly-1 arquillian-protocol-servlet 1.1.2.Final-wildfly-1 wildfly-arquillian-container-remote 8.1.0.CR2 Reporter: Serge Mürset Assignee: Stuart Douglas Labels: race-condition, wildfly I am experiencing race conditions when running test remotely from Arquillian to Wildfly 8.1.0.CR2. In 2 of 3 Cases i get a NPE in Wildfly in relation to some TimerService EJB. Stacktrace: {code} 10:08:56,169 INFO [org.jboss.as.server] (management-handler-thread - 1) JBAS018559: Deployed "core-dist-0.6.ear" (runtime-name : "core-dist-0.6.ear") 10:08:58,102 ERROR [org.jboss.as.controller.management-operation] (management-handler-thread - 2) JBAS014612: Operation ("read-attribute") failed - address: ([ ("deployment" => "core-dist-0.6.ear"), ("subdeployment" => "core.jar"), ("subsystem" => "ejb3"), ("singleton-bean" => "FileDeploymentScanner"), ("service" => "timer-service"), ("timer" => "53ca8249-b0a1-42ab-810b-abad39cb3d19") ]): java.lang.NullPointerException at org.jboss.as.ejb3.subsystem.deployment.TimerResourceDefinition$10.readAttribute(TimerResourceDefinition.java:268) at org.jboss.as.ejb3.subsystem.deployment.TimerResourceDefinition$AbstractReadAttributeHandler.executeRuntime(TimerResourceDefinition.java:364) at org.jboss.as.ejb3.subsystem.deployment.TimerResourceDefinition$AbstractTimerHandler$1.execute(TimerResourceDefinition.java:330) at org.jboss.as.controller.AbstractOperationContext.executeStep(AbstractOperationContext.java:606) [wildfly-controller-8.1.0.CR2.jar:8.1.0.CR2] at org.jboss.as.controller.AbstractOperationContext.doCompleteStep(AbstractOperationContext.java:484) [wildfly-controller-8.1.0.CR2.jar:8.1.0.CR2] at org.jboss.as.controller.AbstractOperationContext.completeStepInternal(AbstractOperationContext.java:281) [wildfly-controller-8.1.0.CR2.jar:8.1.0.CR2] at org.jboss.as.controller.AbstractOperationContext.executeOperation(AbstractOperationContext.java:276) [wildfly-controller-8.1.0.CR2.jar:8.1.0.CR2] at org.jboss.as.controller.ModelControllerImpl.internalExecute(ModelControllerImpl.java:271) [wildfly-controller-8.1.0.CR2.jar:8.1.0.CR2] at org.jboss.as.controller.ModelControllerImpl.execute(ModelControllerImpl.java:145) [wildfly-controller-8.1.0.CR2.jar:8.1.0.CR2] at org.jboss.as.controller.remote.ModelControllerClientOperationHandler$ExecuteRequestHandler.doExecute(ModelControllerClientOperationHandler.java:199) [wildfly-controller-8.1.0.CR2.jar:8.1.0.CR2] at org.jboss.as.controller.remote.ModelControllerClientOperationHandler$ExecuteRequestHandler.access$300(ModelControllerClientOperationHandler.java:130) [wildfly-controller-8.1.0.CR2.jar:8.1.0.CR2] at org.jboss.as.controller.remote.ModelControllerClientOperationHandler$ExecuteRequestHandler$1$1.run(ModelControllerClientOperationHandler.java:150) [wildfly-controller-8.1.0.CR2.jar:8.1.0.CR2] at org.jboss.as.controller.remote.ModelControllerClientOperationHandler$ExecuteRequestHandler$1$1.run(ModelControllerClientOperationHandler.java:146) [wildfly-controller-8.1.0.CR2.jar:8.1.0.CR2] at java.security.AccessController.doPrivileged(Native Method) [rt.jar:1.7.0_55] at javax.security.auth.Subject.doAs(Subject.java:415) [rt.jar:1.7.0_55] at org.jboss.as.controller.AccessAuditContext.doAs(AccessAuditContext.java:94) [wildfly-controller-8.1.0.CR2.jar:8.1.0.CR2] at org.jboss.as.controller.remote.ModelControllerClientOperationHandler$ExecuteRequestHandler$1.execute(ModelControllerClientOperationHandler.java:146) [wildfly-controller-8.1.0.CR2.jar:8.1.0.CR2] at org.jboss.as.protocol.mgmt.AbstractMessageHandler$2$1.doExecute(AbstractMessageHandler.java:283) [wildfly-protocol-8.1.0.CR2.jar:8.1.0.CR2] at org.jboss.as.protocol.mgmt.AbstractMessageHandler$AsyncTaskRunner.run(AbstractMessageHandler.java:504) [wildfly-protocol-8.1.0.CR2.jar:8.1.0.CR2] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_55] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_55] at java.lang.Thread.run(Thread.java:745) [rt.jar:1.7.0_55] at org.jboss.threads.JBossThread.run(JBossThread.java:122) [jboss-threads-2.1.1.Final.jar:2.1.1.Final] {code} The arquillian test prints: {code} com.ieffects.core.integration.ImportTest STANDARD_ERROR May 23, 2014 10:08:49 AM org.xnio.Xnio <clinit> INFO: XNIO version 3.2.2.Final May 23, 2014 10:08:49 AM org.xnio.nio.NioXnio <clinit> INFO: XNIO NIO Implementation Version 3.2.2.Final May 23, 2014 10:08:49 AM org.jboss.remoting3.EndpointImpl <clinit> INFO: JBoss Remoting version 4.0.3.Final May 23, 2014 10:08:58 AM org.jboss.as.arquillian.container.ManagementClient checkSuccessful ERROR: Operation { "operation" => "read-resource", "recursive" => "true", "address" => undefined } did not succeed. Result was { "outcome" => "failed", "result" => { "management-major-version" => 2, "management-micro-version" => 0, "management-minor-version" => 1, "name" => "cust", "namespaces" => [], "product-name" => undefined, "product-version" => undefined, "profile-name" => undefined, "release-codename" => "Kenny", "release-version" => "8.1.0.CR2", "schema-locations" => [], "core-service" => { "management" => { "access" => { "authorization" => { ... the complete wildfly configuration... }, "rolled-back" => true } {code} The TimerService is somewhat special, it schedules the times itself (No Schedule annotation. Simplified it looks like this: {code} @ConcurrencyManagement(ConcurrencyManagementType.BEAN) @Singleton @Startup @TransactionAttribute(TransactionAttributeType.NOT_SUPPORTED) public class MyTimerService { @Resource private TimerService _timerService; /** * Scans and deploys files according to configuration. */ @Timeout public void handleClick() { System.out.println("handle click"); } /** * Initializes the service. */ @PostConstruct public void startup() { System.out.println("Starting timer service"); _timerService.createSingleActionTimer(10000, new TimerConfig("FileDeploymentScanner", false)); try { Thread.sleep(10000); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } System.out.println("Started timer service"); } } {code} What is happening, is, the arquillian client apparently tries to read complete wildfly configuration (dont know why), and during this step it fails to do so. I failed to write reproducer ear/app. I can't release my closed source though which produces this error. But hopefully, this NPE is easy to fix.