e-book, page 83

1 error : cannot find symbol "MessageHandler"

package hello;

import javax.ejb.Stateless;
import javax.persistence.*;
import java.util.List;

@Stateless
public class MessageHandlerBean implements MessageHandler

Thank you,
Douglas V[/url]

You need to write the interface MessageHandler. It's in the same package. It's also shown on the same book page at the top.

I have done that,

using the JCreator editor
windows xp

src/hello/
Message.java
MessageHandler.java
MessageHandlerBean.java


Thank you,
Douglas V

Download the source code from http://caveatemptor.hibernate.org/ and compare it to what you did. The available source compiles and runs fine standalone. If you get a "cannot find symbol" message, your directory/project/classpath setup in your IDE is very likely wrong.

Just because the source file is in that directory doesn't necessarilly mean it's got the proper package name (not all IDEs enforce a source tree where all sources are placed in a directory structure matching their package structure, and neither does the compiler).

I'd doublecheck that first of all.