I tried the solutions provided in the Oracle support document ID
621495.1, by replacing the HOSTNAME with IP address in Applicaton
server config file as well as in webserver's configuration files. ping
the applicaton server with hostname,PTWEBSERVER password and
application server availability etc.
None of the above solutions worked for me,but I was able to resolve
the issue by changing my JSL port to bigger value ,which is not closer
to JSL ports of other application servers running on the same machine.
Strange thing here is you nowhere find the information on portconflict
either in application server logs/webserverlogs application server
boots up with out port conflict.
Hope this may be helpful if you face same kind of error.
All the best
-Sampath Kumar Bodiga