When the java client using tries to connect to server, it gives communication exception. The java client is invoked from the windows desktop using CDDT/DDS toolbar.
Java Client is using JRE 1.5.0_09
The server is Weblogic Server 9.2 MP2 and J2SE 1.5.0_15 running on Solaris 2.8.
This error is happening only after we migrate Server to Weblogic 9.2 MP2 and J2Se 1.5.0_15 and Client to 1.5.0_09
We have already raised a Case with Oracle/BEA and they were unable to resolve it, as this is a problem with JRE.
It was working with JRE 1.4.2_13, but after migrating to JRE 1.5.0_09 it's giving error.
 

The resulting exception which is even seen with 6u16 is:

>java LaunchApplicationTest
 the exception is org.omg.CORBA.COMM_FAILURE: vmcid: SUN minor code: 203 com

pleted: No
        at com.sun.corba.se.impl.logging.ORBUtilSystemException.writeErrorSend(O

RBUtilSystemException.java:2259)
        at com.sun.corba.se.impl.logging.ORBUtilSystemException.writeErrorSend(O

RBUtilSystemException.java:2281)
        at com.sun.corba.se.impl.transport.SocketOrChannelConnectionImpl.writeLo

ck(SocketOrChannelConnectionImpl.java:957)
        at com.sun.corba.se.impl.encoding.BufferManagerWriteStream.sendFragment(

BufferManagerWriteStream.java:86)
        at com.sun.corba.se.impl.encoding.BufferManagerWriteStream.sendMessage(B

ufferManagerWriteStream.java:104)
        at com.sun.corba.se.impl.encoding.CDROutputObject.finishSendingMessage(C

DROutputObject.java:144)
        at com.sun.corba.se.impl.protocol.CorbaMessageMediatorImpl.finishSending

Request(CorbaMessageMediatorImpl.java:247)
        at com.sun.corba.se.impl.protocol.CorbaClientRequestDispatcherImpl.marsh

alingComplete1(CorbaClientRequestDispatcherImpl.java:342)
        at com.sun.corba.se.impl.protocol.CorbaClientRequestDispatcherImpl.marsh

alingComplete(CorbaClientRequestDispatcherImpl.java:323)
        at com.sun.corba.se.impl.protocol.CorbaClientDelegateImpl.invoke(CorbaCl

ientDelegateImpl.java:129)
        at com.sun.corba.se.impl.protocol.CorbaClientDelegateImpl.is_a(CorbaClie

ntDelegateImpl.java:213)
        at org.omg.CORBA.portable.ObjectImpl._is_a(ObjectImpl.java:112)
        at weblogic.corba.j2ee.naming.Utils.narrowContext(Utils.java:126)
        at weblogic.corba.j2ee.naming.InitialContextFactoryImpl.getInitialContex

t(InitialContextFactoryImpl.java:94)
        at weblogic.corba.j2ee.naming.InitialContextFactoryImpl.getInitialContex

t(InitialContextFactoryImpl.java:31)
        at weblogic.jndi.WLInitialContextFactory.getInitialContext(WLInitialCont

extFactory.java:41)
        at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:6

67)
        at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:288

)
        at javax.naming.InitialContext.init(InitialContext.java:223)
        at javax.naming.InitialContext.<init>(InitialContext.java:197)
        at LaunchApplicationTest.setInitialContext(LaunchApplicationTest.java:44

)
        at LaunchApplicationTest.main(LaunchApplicationTest.java:25)
>

Please see Comments for information regarding the test case, LaunchApplicationTest.java.