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access entity bean in session bean by local interface

 
zb cong
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hello
my session bean is "Viewer",my entity bean is "Authors",both of them are within the same jar file named "Viewer.jar".i create a test client by using jb6,in this client i access the session bean by using remote interface,it works well,but when i try to access the entity bean in the session bean by the local interface,the jb6 throw a "NameNotFoundException".following is the details:
my deployment descriptor:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN" "http://java.sun.com/dtd/ejb-jar_2_0.dtd">
<ejb-jar>
<enterprise-beans>
<session>
<display-name>Viewer</display-name>
<ejb-name>Viewer</ejb-name>
<home>test.ViewerHome</home>
<remote>test.Viewer</remote>
<ejb-class>test.ViewerBean</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Container</transaction-type>
</session>
<entity>
<display-name>Authors</display-name>
<ejb-name>Authors</ejb-name>
<local-home>test.AuthorsHome</local-home>
<local>test.Authors</local>
<ejb-class>test.AuthorsBean</ejb-class>
<persistence-type>Container</persistence-type>
<prim-key-class>java.lang.String</prim-key-class>
<reentrant>False</reentrant>
<cmp-version>2.x</cmp-version>
<abstract-schema-name>Authors</abstract-schema-name>
<cmp-field>
<field-name>auId</field-name>
</cmp-field>
<cmp-field>
<field-name>auLname</field-name>
</cmp-field>
<cmp-field>
<field-name>auFname</field-name>
</cmp-field>
<cmp-field>
<field-name>phone</field-name>
</cmp-field>
<cmp-field>
<field-name>address</field-name>
</cmp-field>
<cmp-field>
<field-name>city</field-name>
</cmp-field>
<cmp-field>
<field-name>state</field-name>
</cmp-field>
<cmp-field>
<field-name>zip</field-name>
</cmp-field>
<cmp-field>
<field-name>contract</field-name>
</cmp-field>
<primkey-field>auId</primkey-field>
</entity>
</enterprise-beans>
<assembly-descriptor>
<container-transaction>
<method>
<ejb-name>Viewer</ejb-name>
<method-name>*</method-name>
</method>
<method>
<ejb-name>Authors</ejb-name>
<method-name>*</method-name>
</method>
<trans-attribute>Required</trans-attribute>
</container-transaction>
</assembly-descriptor>
</ejb-jar>



in my session bean,i specify:

...............
..............
Context ctx=new InitialContext();
Object ref=ctx.lookup("Authors");
................
..............



i think that i should add the "ejb-local-ref" tag to the deployment descriptor,as follow:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN" "http://java.sun.com/dtd/ejb-jar_2_0.dtd">
<ejb-jar>
<enterprise-beans>
<session>
<display-name>Viewer</display-name>
<ejb-name>Viewer</ejb-name>
<home>test.ViewerHome</home>
<remote>test.Viewer</remote>
<ejb-class>test.ViewerBean</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Container</transaction-type>
<ejb-local-ref>
<description />
<ejb-ref-name>Authors</ejb-ref-name>
<ejb-ref-type>Entity</ejb-ref-type>
<local-home>test.AuthorsHome</local-home>
<local>test.Authors</local>
<ejb-link>Authors</ejb-link>
</ejb-local-ref>
</session>
<entity>
<display-name>Authors</display-name>
<ejb-name>Authors</ejb-name>
<local-home>test.AuthorsHome</local-home>
<local>test.Authors</local>
<ejb-class>test.AuthorsBean</ejb-class>
<persistence-type>Container</persistence-type>
<prim-key-class>java.lang.String</prim-key-class>
<reentrant>False</reentrant>
<cmp-version>2.x</cmp-version>
<abstract-schema-name>Authors</abstract-schema-name>
<cmp-field>
<field-name>auId</field-name>
</cmp-field>
<cmp-field>
<field-name>auLname</field-name>
</cmp-field>
<cmp-field>
<field-name>auFname</field-name>
</cmp-field>
<cmp-field>
<field-name>phone</field-name>
</cmp-field>
<cmp-field>
<field-name>address</field-name>
</cmp-field>
<cmp-field>
<field-name>city</field-name>
</cmp-field>
<cmp-field>
<field-name>state</field-name>
</cmp-field>
<cmp-field>
<field-name>zip</field-name>
</cmp-field>
<cmp-field>
<field-name>contract</field-name>
</cmp-field>
<primkey-field>auId</primkey-field>
</entity>
</enterprise-beans>
<assembly-descriptor>
<container-transaction>
<method>
<ejb-name>Viewer</ejb-name>
<method-name>*</method-name>
</method>
<method>
<ejb-name>Authors</ejb-name>
<method-name>*</method-name>
</method>
<trans-attribute>Required</trans-attribute>
</container-transaction>
</assembly-descriptor>
</ejb-jar>


but it throw another exception as:

"Viewer.ejbgrpx": Jar verify failed: java.lang.ClassCastException: com.borland.jbuilder.enterprise.ejb.bes.c



why?
who can help me?thank you!
 
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