java.io.IOException: write not supported at weblogic.corba.client.cluster.DummySocket$2.write(DummySocket.java:35)

javax.naming.NamingException: Couldn't connect to the specified host : write not supported [Root exception is org.omg.CORBA.COMM_FAILURE: vmcid: SUN minor code: 203 completed: Maybe]
at weblogic.corba.j2ee.naming.Utils.wrapNamingException(Utils.java:83)
at weblogic.corba.j2ee.naming.ORBHelper.getORBReferenceWithRetry(ORBHelper.java:656)
at weblogic.corba.j2ee.naming.ORBHelper.getORBReference(ORBHelper.java:594)
at weblogic.corba.j2ee.naming.InitialContextFactoryImpl.getInitialContext(InitialContextFactoryImpl.java:85)
at weblogic.corba.j2ee.naming.InitialContextFactoryImpl.getInitialContext(InitialContextFactoryImpl.java:31)
at weblogic.jndi.WLInitialContextFactory.getInitialContext(WLInitialContextFactory.java:46)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:667)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:288)
at javax.naming.InitialContext.init(InitialContext.java:223)
at javax.naming.InitialContext.(InitialContext.java:197)
at durablesubscribers.DurableSubscriberFactory.run(DurableSubscriberFactory.java:58)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: org.omg.CORBA.COMM_FAILURE: vmcid: SUN minor code: 203 completed: Maybe
at com.sun.corba.se.impl.logging.ORBUtilSystemException.writeErrorSend(ORBUtilSystemException.java:2259)
at com.sun.corba.se.impl.logging.ORBUtilSystemException.writeErrorSend(ORBUtilSystemException.java:2277)
at com.sun.corba.se.impl.transport.SocketOrChannelConnectionImpl.sendWithoutLock(SocketOrChannelConnectionImpl.java:1066)
at com.sun.corba.se.impl.encoding.BufferManagerWriteGrow.sendMessage(BufferManagerWriteGrow.java:57)
at com.sun.corba.se.impl.encoding.CDROutputObject.finishSendingMessage(CDROutputObject.java:144)
at com.sun.corba.se.impl.protocol.CorbaMessageMediatorImpl.finishSendingRequest(CorbaMessageMediatorImpl.java:247)
at com.sun.corba.se.impl.protocol.CorbaClientRequestDispatcherImpl.marshalingComplete1(CorbaClientRequestDispatcherImpl.j
va:355)
at com.sun.corba.se.impl.protocol.CorbaClientRequestDispatcherImpl.marshalingComplete(CorbaClientRequestDispatcherImpl.ja
a:336)
at com.sun.corba.se.impl.protocol.CorbaClientDelegateImpl.invoke(CorbaClientDelegateImpl.java:129)
at com.sun.corba.se.impl.protocol.CorbaClientDelegateImpl.non_existent(CorbaClientDelegateImpl.java:232)
at org.omg.CORBA.portable.ObjectImpl._non_existent(ObjectImpl.java:137)
at weblogic.corba.j2ee.naming.ORBHelper.getORBReferenceWithRetry(ORBHelper.java:633)
... 15 more
Caused by: java.io.IOException: write not supported
at weblogic.corba.client.cluster.DummySocket$2.write(DummySocket.java:35)
at java.io.OutputStream.write(OutputStream.java:99)
at com.sun.corba.se.impl.transport.SocketOrChannelConnectionImpl.write(SocketOrChannelConnectionImpl.java:724)
at com.sun.corba.se.impl.encoding.CDROutputObject.writeTo(CDROutputObject.java:174)
at com.sun.corba.se.impl.transport.SocketOrChannelConnectionImpl.sendWithoutLock(SocketOrChannelConnectionImpl.java:1016)
... 24 more



it turns out that I was running classes compiled with a different JDK using different WebLogic libraries. Recompiling everything with the new libraries fixed the problem.