313 2003-01-15 17:25:27 +0000 Same POA name on 2 different jvms on same machine - NullPointerException 2003-12-01 11:58:38 +0000 1 1 1 Unclassified JacORB ORB 1.4.1 Other AIX RESOLVED FIXED P3 major --- 1 john.seltzer rnc alex_ranous dnedde oldest_to_newest 561 0 john.seltzer 2003-01-15 17:25:27 +0000 Case 1: jvm 1 instantiates interface "Test1" on OAPort N and in Persistent Poa named "MyPoa" It is a server process. jvm 2 instantiates interface "Test2" on OAPort N+1 and in Persistent Poa named "MyPoa". Poa in jvm 2 has the SAME name as the Poa in jvm 1. It is a server process, but it also is a client to interface "Test1" in jvm 1. When I call non_existent, I get a NullPointerException: java.lang.NullPointerException 01/14 18:53:58:ERR:[Conn_FileReadService]:java.lang.NullPointerException java.lang.NullPointerException at org.jacorb.orb.Delegate.non_existent(Delegate.java:1304) at org.omg.CORBA.portable.ObjectImpl._non_existent(ObjectImpl.java:57) Because reference "so" in Delegate.java is null. This is all because the orb is wrongly assuming that is_really_local is true. I think it implies that it thinks that the implemention could be running in the same VM. And further tests described later imply this also. With jacorb.verbosity=2, I see this before the NullPointerException: ############################ StackTrace ############################ org.omg.PortableServer.POAPackage.ObjectNotActive: IDL:omg.org/PortableServer/POA/ObjectNotActive:1.0 at org.jacorb.poa.POA.reference_to_servant(POA.java:1380) at org.jacorb.orb.Delegate.servant_preinvoke(Delegate.java:1473) at org.jacorb.orb.Delegate.non_existent(Delegate.java:1300) at org.omg.CORBA.portable.ObjectImpl._non_existent(ObjectImpl.java:57) So, it should recover from this and just return true for_non_existent ------------------------------------------------------------------------- Next case, Case 2: jvm 1 instantiates interface "Test1" on OAPort N and in Persistent Poa named "MyPoa" It is a server process. jvm 2 instantiates interface "Test1" on OAPort N+1 and in Persistent Poa named "MyPoa". Poa in jvm 2 has the SAME name as the Poa in jvm 1. The difference from Case1 is that both jvms are invoking the SAME interface It is a server process, but it also is a client to interface "Test1" in jvm 1. When I invoke _non_existent here, it returns false, and I am able to invoke a method on interface 1. I think that jvm2 is actually invoking the method on it's OWN implementation in it's OWN jvm. I think this because there is no line that says: [ ConnectionManager: created new conn to target xx.xx.xx.xx:portN+1]. Is it assuming that I want to talk to this interface in the same JVM? This is really a test to prove a point. It's not as important as Case 1. 595 1 gerard.burnside 2003-03-21 10:31:25 +0000 I experienced a similar problem; the work-around was to use different names for the two POAs. G.Burnside - Alcatel 596 2 sm 2003-03-21 10:59:51 +0000 ... or alternately if you wished to keep the same POA names you could set different jacorb.implname property values for each server. 656 3 rnc 2003-06-09 16:11:48 +0000 *** Bug 291 has been marked as a duplicate of this bug. *** 690 4 rnc 2003-08-11 16:06:05 +0000 Solutions suggested. Error handling improved, see bug 313 691 5 rnc 2003-08-11 16:06:53 +0000 Correction - Error handling improved, see bug 208 885 6 sm 2003-12-01 11:58:38 +0000 *** Bug 418 has been marked as a duplicate of this bug. ***