NullPointerException occurred during availability check for Tomcat Server in JBoss ON

Solution Verified - Updated -

Issue

  • Tomcat server is in inventory but unavailable
  • Two services are configured in tomcat's server.xml but only one service is visible in JON. How JON has to be configured so that both the services are visible?
  • Availability check fails with NullPointerException
2015-10-08 16:44:10,182 DEBUG [ResourceContainer.invoker.availCheck.daemon-14] (jboss.on.plugins.tomcat.TomcatServerComponent)- An exception occurred during availability check for Tomcat Server Resource with key ....].
java.lang.NullPointerException
    at org.jboss.on.plugins.tomcat.TomcatServerComponent.getAvailability(TomcatServerComponent.java:386)
    at org.rhq.core.pc.inventory.AvailabilityProxy.call(AvailabilityProxy.java:143)
    at org.rhq.core.pc.inventory.AvailabilityProxy.call(AvailabilityProxy.java:52)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
    at java.lang.Thread.run(Thread.java:682)

Environment

  • Red Hat JBoss Operations Network (ON) 3.3
  • Red Hat Enterprise Web Server (Tomcat)

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