I am a newbie to java technology. i am creating java applications using visualage for java. I have a EJB created and tested in WTE of visualage for java(VAJ) is working fine. I have a servlet which is also developed in VAJ is also working fine. When i am trying to call the EJB from the servlet, it does not show any error while creating the objects of the bean. But when i am running it, it shows a Null pointer exception. Both the EJB and servlet are in the same package. Please help me in get rid of this problem by providing a solution to this. If possible please provide me the exact syntax to call a EJB from servlet through a sample code which i can run on VAJ.
Ta Ri Ki Sun
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Joined: Mar 26, 2002
Posts: 442
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post the code you have now, only the relevant bits, ie bean creation from servlet, i'll see if i can help maybe also post the stack trace
Paul Stevens
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Joined: May 17, 2001
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BtsGopal Welcome to the JavaRanch! Please adjust your display name to meet the JavaRanch Naming Policy. You can change it here. Thanks! and welcome to the JavaRanch!
Gopal
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Joined: Sep 04, 2002
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here is my servler coding ------------------------- System.setProperty("java.naming.factory.initial","com.ibm.ejs.ns.jndi.CNInitialContextFactory"); System.setProperty("java.naming.provider.url","iiop://localhost:900/"); InitialContext jndiContext= new InitialContext(); Object ref= jndiContext.lookup("com/ibm/ivj/wte/samples/leapyear/loginHome"); loginHome home=(loginHome) PortableRemoteObject.narrow(ref,loginHome.class); login loged= home.create(); loged.testMethod(); The exceptions are handled perfectly. The bean coding (the method that i have called)is here System.out.println("just a try"); It does not shown any error while creating the object of the bean. but it gives the following exception Error 500 An error has occured while processing request:http://localhost:8080/servlet/com.ibm.ivj.wte.samples.leapyear.usebean Message: Server caught unhandled exception from servlet [com.ibm.ivj.wte.samples.leapyear.usebean]: null the <ejb-ref> in web.xml is set as follows <ejb-ref> <description>The test of java bean</description> <ejb-ref-name>com/ibm/ivj/wte/samples/leapyear/login </ejb-ref-name> <ejb-ref-type>Session</ejb-ref-type> <home>loginhome</home> <remote>login</remote> </ejb-ref> please reply for this as quick as possible. with thanks, Gopal
I agree. Here's the link: http://ej-technologies/jprofiler - if it wasn't for jprofiler, we would need to
run our stuff on 16 servers instead of 3.
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