Another instance j2ee??

Question

Hi ,
when I am giving the command : "j2ee -verbose" in the %j2ee_home%\bin directory, it is giving the following exceptin:
C:\j2sdkee1.2.1\bin>j2ee -verbose
J2EE server Listen Port: = 1049
java.lang.RuntimeException: Could not initialize j2ee server. Possible cause could be ano
ther instance of the server already running.
at com.sun.enterprise.iiop.POAProtocolMgr.initializeNaming(POAProtocolMgr.java:11
8)
at com.sun.enterprise.server.J2EEServer.run(J2EEServer.java:244)
at com.sun.enterprise.server.J2EEServer.main(J2EEServer.java:866)
java.lang.RuntimeException: Could not initialize j2ee server. Possible cause could be ano
ther instance of the server already running.
at com.sun.enterprise.server.J2EEServer.run(J2EEServer.java:348)
at com.sun.enterprise.server.J2EEServer.main(J2EEServer.java:866)
J2EE server reported the following error: Could not initialize j2ee server. Possible caus
e could be another instance of the server already running.
Error executing J2EE server ...
several times I have shut down my system, uninstalled and reinstalled the server.... but steel while
running the server the same exception is coming.
Can any body give some idea how to solve the problem??
thanks in advance.

Answer 1

Greetings,
J2EE server Listen Port: = 1049So far so good... the server does not report module/port functioning until after they've been successfully started. IOW: the server listener is now - er, "listening" ':) - nothing on your system is conflicting with port 1049..
java.lang.RuntimeException: Could not initialize j2ee
server. Possible cause could be another instance of the
server already running.at
com.sun.enterprise.iiop.POAProtocolMgr.initializeNaming
POAProtocolMgr.java:118)You've encountered a not-so-uncommon problem... 'POA' is an acronym for 'Portable Object Adapter' and is a part of CORBA. More specifically, POA is used to provide a namespace to objects managed by an ORB which, as it turns out ;), is the next thing the RI tries to initialize: COS (Common Object Service) Naming Service (also called a 'CMA'; CORBA Management Agent). By default, the COS (CMA) runs on port 1050. In any case, it would seem your system already has an ORB running (e.g. VisiBroker) - or, perhaps, RMI-IIOP has been installed separately and this is conflicting with the instance included in the J2EE SDK...
several times I have shut down my system, uninstalled
and reinstalled the server.... but steel whileSo much unnecessary work and frustration... ':)
running the server the same exception is coming.
Can any body give some idea how to solve the
problem??"Why, 'sortanly!" The quickest way to solve the problem is to change the port number the RI's ORB is running on: cd to %J2EE_HOME%\config and edit the file orb.properties. Change the port number ("port=1050") to something non-conflicting - '1052' is usually a good try. Remember the final port number; Your client apps (including those in distinct Servlet containers), will now have to access your beans using this port.
thanks in advance.Regards,
Tony "Vee Schade" Cook