Dan,
A newbie question here. All my ejb classes are in my jar file, that is in
the ear file sitting in the deployment directory. Should I add the jar file
in my classpath too, ie. c:\jboss\deploy\app.ear ?
Thanks,
Southin
-----Original Message-----
From: Dan Christopherson [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, March 14, 2001 12:18 PM
To: JBoss-User
Subject: Re: [jBoss-User] Deployment & Jndi
Your client also needs your bean's interface classes in its classpath.
On Wed, 14 Mar 2001, Simphoukham, Southin wrote:
> Hi,
>
> Does anyone know how to solve this error? I have practically every jar
from
> c:\jboss\client in my classpath and still it doesn't work.
>
> [Auto deploy] Pop org.apache.struts.action.ActionMapping
> [Container factory]
Deploying:file:/C:/jboss/tmp/deploy/Default/Power20.ear
> [Verifier] Verifying
> file:/C:/jboss/tmp/deploy/Default/Power20.ear/ejb1001.jar
> [Container factory] Deploying JDBCSource
> [Container factory] Deployed application:
> file:/C:/jboss/tmp/deploy/Default/Powe
> r20.ear
> [J2EE Deployer Default] J2EE application:
file:/C:/jboss/deploy/Power20.ear
> is d
> eployed.
> [Auto deploy] Started
> [Service Control] Started 27 services
> [Default] JBoss 2.1-BETA Started in 0m:13s
> [EmbeddedTomcat] Username is test
> [EmbeddedTomcat] JDBCSessionMgr:getInstance()
> [EmbeddedTomcat] Createing Session Mgr
> [EmbeddedTomcat] JDBCSessionMgr.getTheSessionBean()
> [EmbeddedTomcat] JDBCSessionMgrCREATING SESSION BEAN
> [EmbeddedTomcat] ----> Initial Context=javax.naming.InitialContext@22c9df
> [EmbeddedTomcat] JDBCSessionMgr.getTheSessionBean() failed. Exception:
> javax.na
> ming.CommunicationException [Root exception is
> java.lang.ClassNotFoundException:
> com.power20.ejb.sessionbeans.JDBCSourceHome]
> [EmbeddedTomcat] javax.naming.CommunicationException [Root exception is
> java.lan
> g.ClassNotFoundException: com.power20.ejb.sessionbeans.JDBCSourceHome]
> [EmbeddedTomcat] java.lang.NullPointerException
>
> Which is basically the same as mentioned below (at
> http://www.jboss.org/documentation/HTML/ch01s12.html )
>
> Compiling and running test client
> We're now ready to run the test client, but first a word of explanation.
>
> In reality the client and the server are likely to be on different
> computers. When you compile the client, the compiler needs to know about
the
> organization and methods of classes in the Bean so it can do type
checking.
> When you run the client, the run-time engine needs to know about the Bean
> classes, because type-casting is done at run-time. So when the client
> attempts to cast the remote reference to a reference to an object of class
> InterestHome for example, it needs to know about this class. This means
that
> you will need the Bean class files on both the client and the server even
> though they execute on the server. This is fairly obvious if you think
about
> the logic, but it causes all sorts of problems for people who are new to
RMI
> programming. If the client can't find the Bean classes, you will get error
> messages like this:
>
>
> javax.naming.CommunicationException [Root exception is
> java.lang.ClassNotFoundException: com.web_tomorrow.interest.InterestHome]
>
> A 'communication exception' is the exception that represents any error
that
> can't readily be ascribed to a definite cause. If you get this message you
> need to pay attention to the CLASSPATH on the client. NOTE that the server
> doesn't need to have the classpath set, you just need to put it in the
> deploy directory and the server will generate a ClassLoader for it.
>
> Thanks,
>
> Southin
>
>
>
>
> --
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>
--
Dan Christopherson (danch)
nVisia Technical Architect (www.nvisia.com)
Opinions expressed are mine and do not neccessarily reflect any
position or opinion of nVISIA.
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