Unable to build existing composite app which was developed using earlier version
of latest build.

Since this issue is a showstopper for QA, marking this bug P1
Here is my build information:
App Server details:

   App Server version           = Sun Java System Application Server 9.1 (build
b36-rc)
   App Server build date        = Wed Feb 14 00:52:12 PST 2007

JBI details:
_______________________________________________________________________________________

Running at 16 February 2007 11:52:14 AM on SunOS 5.10 [x86] using Java
1.5.0_10-b03 from /obrien1/jdk1.5.0_10/jre

   app server type              = GLASSFISH (sub-type = CLUSTER version = 91)
   app server domains           = 1 (instances = 0 cluster = )
   java.io.tmpdir               = /var/tmp/
   jbi port                     = 17888 (secure = true)
   installed product build      = 070216
   installed product variant    = Kenai
   installed product kit type   = image

JBI build details:

   JBI Framework     build date = Fri Feb 16 07:20:06 PST 2007 [source:
/obrien1/gf91/jbi/lib/jbi_framework.jar]
   HTTP SOAP Binding build date = Mon Feb 12 20:54:40 PST 2007 [source:
/obrien1/gf91/jbi/components/com.sun.httpsoapbc-1.0-2/httpsoapbc.jar]
   BPEL Engine       build date = Mon Feb 12 20:55:26 PST 2007 [source:
/obrien1/gf91/addons/jbi-components/bpelserviceengine.jar] 
-------------------------------------------------------------------------
Here is the exception i get :-

Building jar:
/obrien1/asif/netbeans/kenaiws/JMSBC/outbound/JMSOutboundJBI/build/BCDeployment.jar
copying Sub-Assembly:
/obrien1/asif/netbeans/kenaiws/JMSBC/outbound/JMSOutboundJBI/build/JMSOutboundBPEL.jar
java.lang.NullPointerException
       at
org.netbeans.modules.compapp.projects.jbi.anttasks.CasaBuilder.mergeCasaConnection(CasaBuilder.java:562)
       at
org.netbeans.modules.compapp.projects.jbi.anttasks.BuildServiceAssembly.execute(BuildServiceAssembly.java:331)
       at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
       at org.apache.tools.ant.Task.perform(Task.java:364)
       at org.apache.tools.ant.Target.execute(Target.java:341)
       at org.apache.tools.ant.Target.performTasks(Target.java:369)
       at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)
       at org.apache.tools.ant.Project.executeTarget(Project.java:1185)
       at
org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:40)
       at org.apache.tools.ant.Project.executeTargets(Project.java:1068)
       at
org.apache.tools.ant.module.bridge.impl.BridgeImpl.run(BridgeImpl.java:240)
       at
org.apache.tools.ant.module.run.TargetExecutor.run(TargetExecutor.java:293)
       at org.netbeans.core.execution.RunClassThread.run(RunClassThread.java:131)
Build SA Failed: java.lang.NullPointerException
Deleting:
/obrien1/asif/netbeans/kenaiws/JMSBC/outbound/JMSOutboundJBI/build/BCDeployment.jar
Created dir: /obrien1/asif/netbeans/kenaiws/JMSBC/outbound/JMSOutboundJBI/dist
Building jar:
/obrien1/asif/netbeans/kenaiws/JMSBC/outbound/JMSOutboundJBI/dist/JMSOutboundJBI.zip
jbi-clean-build:
BUILD SUCCESSFUL (total time: 3 seconds