JBoss 3.2.3 on AIX 5.2

[colin.lewis]

I am having serious problems porting my application on to AIX 5.2.

JBoss starts ok but as soon as I try to invoke a method on an MBean from within my application (something that has occured many times during startup) it core dumps and fails to produce a java core file so all I'm left with is the binary core and no further clues.

Further investigation shows that it occurs on calling invoke on MBeanServerImpl.class. The MBeanServer is successfully located the class is right and it is located in the right classloader but on calling invoke the method is never reached.

I can however successfully call that same method from the jmx-console.

I have tried both the 32-bit jdk 1.4.2.4 and the 64-bit 1.4.2.3 and they both exhibit the same behaviour.

Anyone got any suggestions other than exmining the core file...

[frankgrimes]

First thing I would do is check to make sure I have the latest IBM JDK filesets... looks like 1.4.2.5 (32 and 64-bit) is the latest available now for JDK-1.4.2.

Next, I would try to build Jboss with the IBM JDK.
Over the years, I've occasionally seen cases where the IBM JVM chokes on classes compiled using Sun's JDK. (strange but true)

If all else fails, it looks like you have no choice but to open up an IBM support issue. After all, if their JVM is core-dumping, it's their problem and not Jboss'. (i.e. there's nothing Jboss folks can do to help)

FYI, we've run jboss-3.2.3 and jboss-3.2.7 on AIX 5.x in production, but only on JDK-1.3.1 (32 and 64-bit).

We're planning to eventually (in the next few months) move to jboss-4.0.2 on AIX w/JDK-1.4.2, so I'd be curious to know if you manage to resolve this issue.

Good luck!

[colin.lewis]

Yeah done that.

Thanks anyway, will let you know how I get on.

[colin.lewis]

It would appear the issues was one of classloading. We have managed to resolve our issues by going to JBoss4.0 and using isolated class loaders for our separate archives.

I have to say I am not impressed with the IBM jdk if anything untorward happens it just core dumps, really helpful.