[jbossseam-issues] [JBoss JIRA] Created: (JBSEAM-4029) NPE in JBossClusterMonitor.locateJBoss when other non-JBoss JMX servers are present

[Joshua Davis (JIRA)]

NPE in JBossClusterMonitor.locateJBoss when other non-JBoss JMX servers are present
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                 Key: JBSEAM-4029
                 URL: https://jira.jboss.org/jira/browse/JBSEAM-4029
             Project: Seam
          Issue Type: Bug
    Affects Versions: 2.1.1.GA
         Environment: Seam 2.1.1.GA, JBoss AS 4.2.2.GA, JDK 1.5.0_12, Linux
            Reporter: Joshua Davis


Seam 2.1.1.GA doesn't start up when there is another JMX server.

Repro:
# Specify system properties so that the sun JMX server is also started:  -Dcom.sun.management.jmxremote.port=12345 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Djboss.platform.mbeanserver  -Djavax.management.builder.initial=org.jboss.system.server.jmx.MBeanServerBuilderImpl
# Start JBoss with any Seam 2.1.1.GA application.   
# Observe the following error on startup:
{code}
2009-03-21 17:38:51,065 [main ]  INFO  javax.servlet.ServletContextListener - Welcome to Seam 2.1.1.GA
2009-03-21 17:38:55,248 [main ]  ERROR org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/] - Exception sending context initialized event to listener instance of class org.jboss.seam.servlet.SeamListener
org.jboss.seam.InstantiationException: Could not instantiate Seam component: org.jboss.seam.jmx.jbossClusterMonitor
        at org.jboss.seam.Component.newInstance(Component.java:2106)
        at org.jboss.seam.contexts.Contexts.startup(Contexts.java:304)
        at org.jboss.seam.contexts.Contexts.startup(Contexts.java:278)
        at org.jboss.seam.contexts.ServletLifecycle.endInitialization(ServletLifecycle.java:112)
        at org.jboss.seam.init.Initialization.init(Initialization.java:735)
        at org.jboss.seam.servlet.SeamListener.contextInitialized(SeamListener.java:35)
...
Caused by: java.lang.NullPointerException
        at org.jboss.seam.jmx.JBossClusterMonitor.locateJBoss(JBossClusterMonitor.java:145)
        at org.jboss.seam.jmx.JBossClusterMonitor.create(JBossClusterMonitor.java:54)
...
{code}


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