Bug in Sun's j2sdk1.4.2_03 proxy generation?

[aloubyansky]

Running SPECjAppServer on Sun's j2sdk1.4.2_03 I often get an UndeclaredThrowableException caused by NullPointerException thorwn from a proxy instance when invoking a method on the proxy by reflection.

For example:

java.lang.reflect.UndeclaredThrowableException
 at $Proxy130.create(Unknown Source)
 at org.spec.jappserver.supplier.web.SupplierDomainServlet.doPost(SupplierDomainServlet.java:278)

.....

Caused by: java.lang.IllegalArgumentException: java.lang.NullPointerException@1c4007
 at sun.reflect.GeneratedMethodAccessor62.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:324)
 at org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.java:72)

This is the line in ReflectedDispatcher:

 return method.invoke(target, args);

I added logging and am sure target is not null. So it looks like a JVM bug, doesn't it?
I just tried JRockit 1.4.2_03 and didn't see this.

[aloubyansky]

No. I can see it with JRockit also.
The cause seems to be null args.

Here is the stack:

2004-04-19 17:04:41,543 1579982 WARN [org.jboss.mx.server.ReflectedDispatcher] (RMI TCP Connection(139)-213.186.210.106:) failed method=invoke, class=org.jboss.ejb.Container, args
=null, target=org.jboss.ejb.StatefulSessionContainer@66450b, t=java.lang.IllegalArgumentException: java.lang.NullPointerException@117feff
2004-04-19 17:04:41,543 1579982 TRACE [org.jboss.ejb.plugins.cmp.jdbc2.schema.EntityTable.M_PARTS] (RMI TCP Connection(137)-213.186.210.106:) reading result set: pk=00001PRESA00170
2004-04-19 17:04:41,543 1579982 ERROR [org.jboss.ejb.plugins.LogInterceptor] (RMI TCP Connection(139)-213.186.210.106:) TransactionRolledbackLocalException in method: public abstra
ct void org.spec.jappserver.mfg.workorderent.ejb.WorkOrderEntLocal.process(), causedBy:
java.lang.reflect.UndeclaredThrowableException
 at $Proxy129.add(Unknown Source)
 at org.spec.jappserver.mfg.workorderent.ejb.WorkOrderCmp20EJB.process(WorkOrderCmp20EJB.java:508)

Where WorkOrderCmp20EJB.process(WorkOrderCmp20EJB.java:508) is:

buyer.add(cid, qtyRequired);

[aloubyansky]

Resolved.
http://www.jboss.org/index.html?module=bb&op=viewtopic&t=48836