[jboss-jira] [JBoss JIRA] Created: (JBAS-3838) ServerInfo does not check response from getThreadInfo for null

[Darran Lofthouse (JIRA)]

ServerInfo does not check response from getThreadInfo for null
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                 Key: JBAS-3838
                 URL: http://jira.jboss.com/jira/browse/JBAS-3838
             Project: JBoss Application Server
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: MicroContainer bus
    Affects Versions: JBossAS-4.0.5.GA
            Reporter: Darran Lofthouse
         Assigned To: Darran Lofthouse
             Fix For: JBossAS-4.2.0.CR1


The ServerInfo MBean does not check the response from getThreadInfo for null.  If getThreadInfo is called for a thread that no longer exists it returns null.  Currently it is possible for the following NullPointerException to be logged: -

java.lang.NullPointerException
	at sun.reflect.GeneratedMethodAccessor87.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.jboss.system.server.ServerInfo.getThreadCpuUtilization(ServerInfo.java:557)
	at org.jboss.system.server.ServerInfo.listThreadCpuUtilization(ServerInfo.java:510)
	at sun.reflect.GeneratedMethodAccessor113.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

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