[jboss-jira] [JBoss JIRA] (AS7-4544) mod-cluster: not setting a load provider leads to an NPE

[Jean-Frederic Clere (JIRA)]

     [ https://issues.jboss.org/browse/AS7-4544?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jean-Frederic Clere reassigned AS7-4544:
----------------------------------------

    Assignee: Tomaz Cerar  (was: Jean-Frederic Clere)


It seems your changes caused another regression.
                
> mod-cluster: not setting a load provider leads to an NPE
> --------------------------------------------------------
>
>                 Key: AS7-4544
>                 URL: https://issues.jboss.org/browse/AS7-4544
>             Project: Application Server 7
>          Issue Type: Bug
>          Components: Clustering
>    Affects Versions: 7.1.1.Final
>            Reporter: Bela Ban
>            Assignee: Tomaz Cerar
>            Priority: Minor
>             Fix For: 7.1.2.Final-redhat1
>
>
> 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]

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