Bela Ban created JBAS-9485: ------------------------------ Summary: mod-cluster: not setting a load provider leads to an NPE Key: JBAS-9485 URL: https://issues.jboss.org/browse/JBAS-9485 Project: Application Server 3 4 5 and 6 Issue Type: Bug Security Level: Public (Everyone can see) Reporter: Bela Ban Priority: Minor In standalone*.xml or domain.xml (AS 7.1.2), if we omit dynamic-load-provider or simple-load-provider, then we get an NPE (see below) when starting an AS instance. E.g. <subsystem xmlns="urn:jboss:domain:modcluster:1.1"> <mod-cluster-config advertise-socket="modcluster"> <!--dynamic-load-provider> <load-metric type="busyness"/> </dynamic-load-provider--> </mod-cluster-config> </subsystem> [Server:one] 08:49:51,379 INFO [org.jboss.as] (Controller Boot Thread) JBAS015874: JBoss AS 7.1.2.Final-SNAPSHOT "Brontes" started in 9954ms - Started 171 of 300 services (128 services are passive or on-demand) [Server:one] 08:49:55,101 INFO [org.jboss.modcluster.ModClusterService] (ContainerBackgroundProcessor[StandardEngine[jboss.web]]) Engine [jboss.web] will use jvmRoute: e4632cc7-f024-33ff-b3ee-c9b94274c09a [Server:one] 08:49:55,108 ERROR [org.apache.catalina.core.ContainerBase] (ContainerBackgroundProcessor[StandardEngine[jboss.web]]) Exception invoking periodic operation: : java.lang.NullPointerException [Server:one] at org.jboss.modcluster.ModClusterService.getLoadBalanceFactor(ModClusterService.java:485) [Server:one] at org.jboss.modcluster.ModClusterService.status(ModClusterService.java:466) [Server:one] at org.jboss.modcluster.container.catalina.CatalinaEventHandlerAdapter.lifecycleEvent(CatalinaEventHandlerAdapter.java:239) [Server:one] at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:115) [jbossweb-7.0.14.Final.jar:] [Server:one] at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1337) [jbossweb-7.0.14.Final.jar:] [Server:one] at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1601) [jbossweb-7.0.14.Final.jar:] [Server:one] at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1590) [jbossweb-7.0.14.Final.jar:] [Server:one] at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_29] -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.jboss.org/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira