[merlin] VM aborts when filling stack trace if element has no source file info

Two of the existing CORBA tests, which are passing fine against merlin build b-38, are failing against build b-39. There have been no CORBA integration from b-38 to b-39 and thus I do not expect this to be a CORBA issue. I'm getting the following exception during test execution:

#
# HotSpot Virtual Machine Error, Unexpected Signal 11
# Please report this error at
# http://java.sun.com/cgi-bin/bugreport.cgi
#
# Error ID: 4F533F534F4C415249530E43505007C2 01
#
# Problematic Thread: prio=5 tid=0x283d0 nid=0x1 runnable
#

I've attached a test case to reproduce the problem. You can change the JAVA_HOME variable in the Makefile to point to different versions of JDKs.