Strange stack trace calling JNDI lookup

[bonzai44]

When I use EJB3 and call the JNDI lookup method from an OSGi bundle client, I'll get this stack trace:

java.lang.ArrayStoreException: org.jboss.ejb3.remoting.IsLocalInterceptor
 at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1628)
 at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1293)
 at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1912)
 at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1836)
 at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1713)
 at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)
 at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1912)
 at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1836)
 at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1713)
 at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)
 at java.io.ObjectInputStream.readObject(ObjectInputStream.java:339)
 at java.rmi.MarshalledObject.get(MarshalledObject.java:135)
 at org.jnp.interfaces.MarshalledValuePair.get(MarshalledValuePair.java:72)
 at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:652)
 at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:587)
 at de.berkom.ehome.j2ee.JBossAdaptor.getContextEntries(JBossAdaptor.java:202)
 at org.sercho.osgi.hsp.ra.BundleActivator.addingService(BundleActivator.java:71)
 at org.osgi.util.tracker.ServiceTracker$Tracked.track(ServiceTracker.java:830)
 at org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:226)
 at org.sercho.osgi.hsp.ra.BundleActivator.start(BundleActivator.java:57)
 at com.prosyst.mbs.impl.framework.module.security.SecurityImpl.run(SecurityImpl.java:218)
 at java.security.AccessController.doPrivileged(Native Method)
 at com.prosyst.mbs.impl.framework.module.security.SecurityImpl.doPrivileged(SecurityImpl.java:197)
 at com.prosyst.mbs.impl.framework.BundleImpl.startIt(BundleImpl.java:1981)
 at com.prosyst.mbs.impl.framework.BundleImpl.simpleStart(BundleImpl.java:699)
 at com.prosyst.mbs.impl.framework.BundleImpl.start0(BundleImpl.java:662)
 at com.prosyst.mbs.impl.framework.BundleImpl.start(BundleImpl.java:574)
 at com.prosyst.mbs.impl.framework.BundleImpl.start(BundleImpl.java:367)
 at com.prosyst.mbs.impl.services.pmp.Administration.startBundle(Administration.java:178)
 at sun.reflect.GeneratedMethodAccessor10.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:585)
 at com.prosyst.mbs.impl.services.pmp.InvocationThread.run(InvocationThread.java:78)
 at com.prosyst.util.impl.tpt.threadpool.Executor.run(Executor.java:110)

I have tried 4.0.3-SP1 as well as 4.0.4-RC1, but nothing changed.

Has anyone of you seen this before?

Thanks for any help,
kind regards,

Andreas