WSRP Portlet registration error

Question

Using the Portal Developer's guide, I created a Java/WSRP portlet and deployed it to a portlet_container. I am now trying to register the portlet and receive this error message from the Oracle Portlet Verification portal and my own Oracle Dev. Preview WSRP Portal:
An error occurred when attempting to call the providers register function. (WWC-43134)
An error occured during the call to the WSRP Provider: An error occurred whilst invoking an operation on the Provider
Java stack trace from root exception:
java.rmi.ServerException: Internal Server Error (caught exception while handling request: oracle.webdb.wsrp.server.ContainerRuntimeException: An internal error has occurred in method <init>)
at com.sun.xml.rpc.client.StreamingSender._raiseFault(StreamingSender.java:384)
at com.sun.xml.rpc.client.StreamingSender._send(StreamingSender.java:245)
at oracle.webdb.wsrp.WSRP_v1_Registration_PortType_Stub.register(WSRP_v1_Registration_PortType_Stub.java:70)
at oracle.webdb.wsrp.client.design.v1.OraWSRP_v1_Registration_PortType.register(OraWSRP_v1_Registration_PortType.java:74)
(WWC-10001363)
Any ideas?
Thank You,
Justin

Answer 1

After using a TCP monitor, I found out that the WSRP was not being contacted at all by the portal upon adding the portlet to the page. In my case, the WSRP was running on port 7778. However, when I changed OC4J listener port to 80 and redeployed all worked well. At this point I am trying to determine if this is a firewall issue or something else.