firefly-fcs; winnt; ns6 OR ns472 : Unable to execute 5 api/java_rmi/Naming tests

Unable to execute five api/java_rmi/Naming tests on winnt with fireflyfcs: ns6 and ns472.
Following five tests are giving ERROR while running Plugin/JCK on winnt for firefly-fcs with ns6.

api/java_rmi/Naming/bind.html#Bind0006
api/java_rmi/Naming/list.html#List0004
api/java_rmi/Naming/lookup.html#Lookup0005
api/java_rmi/Naming/rebind.html#Rebind0007
api/java_rmi/Naming/unbind.html#Unbind0005

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IMP NOTE:
-The tests give the mentioned error for winnt/ns6, winnt/ns472 with firefly-fcs.
-The tests pass for winnt/iexplorer5 with firefly-fcs.
-The tests pass for winnt/ns6, winnt/ns472 with pr3-respin2.
          
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The fcs jre was installed from:
/net/sqesvr/deployment3/firefly/FCS-10-09-2000/win/j2re-1_3_0_01-fcs-bin-b03-win-i-10_oct_2000.exe

The pr3-respin2 jre was installed from;
/net/sqesvr/deployment3/firefly/pr3_respin-2/win/j2re-1_3_0_01-beta-bin-b02-win-i-29_sep_2000.exe

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The error:
Error. Unexpected exception trying to execute test class `javasoft.sqe.tests.api.java.rmi.Naming.LookupTests': java.lang.NullPointerException

Executing command via bharath,port=1692,localport=2902
registry exists
java.lang.NullPointerException
at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(Unknown Source)
at sun.rmi.transport.proxy.HttpSendSocket.writeNotify(Unknown Source)
at sun.rmi.transport.proxy.HttpSendSocket.<init>(Unknown Source)
at sun.rmi.transport.proxy.RMIHttpToCGISocketFactory.createSocket(Unknown Source)
at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(Unknown Source)
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(Unknown Source)
at sun.rmi.transport.tcp.TCPChannel.createConnection(Unknown Source)
at sun.rmi.transport.tcp.TCPChannel.newConnection(Unknown Source)
at sun.rmi.server.UnicastRef.newCall(Unknown Source)
at sun.rmi.registry.RegistryImpl_Stub.bind(Unknown Source)
at java.rmi.Naming.bind(Unknown Source)
at javasoft.sqe.tests.api.java.rmi.Naming.BindTests.Bind0006(BindTests.java:330)
at javasoft.sqe.tests.api.java.rmi.Naming.BindTests.run(BindTests.java:118)
at com.sun.jck.lib.ExecJCKTestSameJVMCmd.executeOldTest(ExecJCKTestSameJVMCmd.java:283)
at com.sun.jck.lib.ExecJCKTestSameJVMCmd.run(ExecJCKTestSameJVMCmd.java:172)
at com.sun.javatest.agent.Agent$Task.executeCommand(Agent.java:744)
at com.sun.javatest.agent.Agent$Task.execute(Agent.java:674)
at com.sun.javatest.agent.Agent$Task.handleRequest(Agent.java:532)
at com.sun.javatest.agent.Agent.handleRequestsUntilClosed(Agent.java:320)
at com.sun.javatest.agent.Agent.access$0(Agent.java:298)
at com.sun.javatest.agent.Agent$1.run(Agent.java:208)
at java.lang.Thread.run(Unknown Source)
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madhura.dudhgaonkar@eng 2000-10-17