If you try to log into iAS 10.1.3.0 and you get the following error:
This OC4J is configured to make JMX connections via RMIS and fall back to RMI if the RMIS port is not configured. The RMIS connection on the OC4J instance home on Application Server iashome.asdes is configured but a connection could
not be established. The JMX proto is specified by the oracle.oc4j.jmx.internal.connection.proto property in opmn.xml
go to metalink note 365062.1 if you are running iAS 10.1.3.0 and db 10.2.0.1. on the same machine. It worked for me
Or install 10.1.3.1, it’s alot better….