Class Cast Error

[charliekelly]

Hi,

I'm using the EJB3 Calculator tutorial on an (unmodified) 5.1.0GA server.

Within client I'm using the statement:

Calculator calculator = (Calculator) ctx.lookup("CalculatorBean/remote");

and receive this error:

Exception in thread "main" java.lang.ClassCastException: javax.naming.Reference cannot be cast to org.jboss.tutorial.stateless.bean.Calculator
    at org.jboss.tutorial.stateless.client.Client.main(Client.java:42)

I will appreciate any help or suggestions.

Thanks

Charlie

[jaikiran]

How are you running the tutorial? Looks like your client classpath does not have jbossall-client.jar (and the other jars referenced in its META-INF/MANIFEST.MF file). These jars can be found in JBOSS_HOME/client folder. But i would expect all this to be set by the Ant/Maven scripts in the tutorials. So did you change anything?

[charliekelly]

Hi,

This solved the problem (indirectly).

I'm running a "client" in a JUnit test within Eclipse.

The jbossall-client is only 2K (I suspect that this might be an error).

I included all the jars in the JBoss client folder into the Eclipse classpath for the JUnit test.

Then it completed correctly.

Thank you for your help.

Charlie

[jaikiran]

CharlieKelly wrote:

The jbossall-client is only 2K (I suspect that this might be an error).

The jbossall-client.jar is a MANIFEST only jar. What this means is, there are no classes within that jar but it has a META-INF/MANIFEST.MF which contains a Class-Path reference to point to all other required jars. The Class-Path entries are relative to the location of the jbossall-client.jar i.e. the jbossall-client.jar and all the referenced jars should be in the same folder. Usually, pointing to the jbossall-client.jar in the JBOSS_HOME/client is enough, but i don't know how IDEs handle the MANIFEST only jars.