When running JNDI on a multi-processor machine, we get intermittent instances
of the following exception:
  java.lang.NullPointerException
        at com.sun.jndi.ldap.Connection.run(Connection.java:567)
        at java.lang.Thread.run(Thread.java:484)
This exception is not trapped by our try/catch block.

Once the exception has occurred, we get one instance of the following exception
on a call to InitialDirContext.getAttributes.
javax.naming.ServiceUnavailableException: roonadan.eng.sun.com:389; remaining name 'OU=prjC, OU=divA, OU=Comp, O=sun, C=us'
        at com.sun.jndi.ldap.Connection.readReply(Connection.java:221)
        at com.sun.jndi.ldap.Connection.readReply(Connection.java:243)
        at com.sun.jndi.ldap.LdapClient.getSearchReply(LdapClient.java:539)
        at com.sun.jndi.ldap.LdapClient.search(LdapClient.java:503)
        at com.sun.jndi.ldap.LdapCtx.doSearch(LdapCtx.java:1720)
        at com.sun.jndi.ldap.LdapCtx.doSearchOnce(LdapCtx.java:1670)
        at com.sun.jndi.ldap.LdapCtx.c_getAttributes(LdapCtx.java:1074)
        at com.sun.jndi.toolkit.ctx.ComponentDirContext.p_getAttributes(ComponentDirContext.java:216)
        at com.sun.jndi.toolkit.ctx.PartialCompositeDirContext.getAttributes(PartialCompositeDirContext.java:124)
        at com.sun.jndi.toolkit.ctx.PartialCompositeDirContext.getAttributes(PartialCompositeDirContext.java:112)
        at javax.naming.directory.InitialDirContext.getAttributes(InitialDirContext.java:124)
        at DirAccessTest2.runTest(DirAccessTest2.java:67)
        at DirAccessTest2.main(DirAccessTest2.java:31)

If we continue calls to InitialDirContext.getAttributes following this
exception we get

javax.naming.CommunicationException: Socket closed. Root exception is java.net.SocketException: Socket closed
        at java.net.SocketOutputStream.socketWrite(Native Method)
        at java.net.SocketOutputStream.write(SocketOutputStream.java:83)
        at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:72)
        at java.io.BufferedOutputStream.write(BufferedOutputStream.java:116)
        at com.sun.jndi.ldap.Connection.writeRequest(Connection.java:209)
        at com.sun.jndi.ldap.LdapClient.search(LdapClient.java:497)
        at com.sun.jndi.ldap.LdapCtx.doSearch(LdapCtx.java:1720)
        at com.sun.jndi.ldap.LdapCtx.doSearchOnce(LdapCtx.java:1670)
        at com.sun.jndi.ldap.LdapCtx.c_getAttributes(LdapCtx.java:1074)
        at com.sun.jndi.toolkit.ctx.ComponentDirContext.p_getAttributes(ComponentDirContext.java:216)
        at com.sun.jndi.toolkit.ctx.PartialCompositeDirContext.getAttributes(PartialCompositeDirContext.java:124)
        at com.sun.jndi.toolkit.ctx.PartialCompositeDirContext.getAttributes(PartialCompositeDirContext.java:112)
        at javax.naming.directory.InitialDirContext.getAttributes(InitialDirContext.java:124)
        at DirAccessTest2.runTest(DirAccessTest2.java:59)
        at DirAccessTest2.main(DirAccessTest2.java:27)