Hi!
I have just migrated JbossCache from version 1.2.4-SP2 to version 1.4.1 (I
am using Jboss 4.0.3-SP1 and JVM 1.5).
While initializing the cache, I was getting the following error:
java.lang.NullPointerException
at org.jboss.cache.TreeCache.getMBeanServer(TreeCache.java:6484)
at org.jboss.cache.TreeCache._createService(TreeCache.java:1383)
at org.jboss.cache.TreeCache.createService(TreeCache.java:1346)
at
org.jboss.system.ServiceMBeanSupport.jbossInternalCreate(ServiceMBeanSupport.java:245)
at
org.jboss.system.ServiceMBeanSupport.create(ServiceMBeanSupport.java:173)
at
org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:265)
at
org.jboss.system.ServiceMBeanSupport.start(ServiceMBeanSupport.java:181)
With version 1.2.4 everything was working fine. Loooking to JbossCache
src code, the NullPointer occurs on the line
server.getDefaultDomain().equalsIgno... :
// return 'jboss' server if available
for (int i = 0; i < servers.size(); i++)
{
MBeanServer server = (MBeanServer) servers.get(i);
if (server.getDefaultDomain().equalsIgnoreCase(JBOSS_SERVER_DOMAIN))
return server;
}
While looking for a solution to the problem, I realized that I was using
the default JVM MBeanServer for Jboss:
-Djboss.platform.mbeanserver
This is the problem. I commented the option above, and everything worked
fine. Why am I getting the NullPointerException. Does the call to
server.getDefaultDomain() on the default MBeanServer returns Null?
Thanks in advance.
Best Regards,
Victor Batista
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