Hi Ranchers,
I need some help resolving this problem. Would appreciate your suggestions.
I am using EJB 2.0, weblogic 6.1 SP4. I am trying to use local entity bean (CMP). Upon lookup I get following exceptions. I believe what it says is there is something that is not serilizable in the Bean class; but i think everything is fine here. Can you please help me locating the error?
My client code doesn't even have enough lines to add to confusion -
// part of client
InitialContext ctx = getInitialContext("t3://myhost:7001");
// my getInitialContext method returns the context properly
// No exceptions yet
Object obj = ctx.lookup("fxcode"); // This is the last line of my client
The last line throws the exception below. Why???
---------------- Exception ------------------------------
Exception in thread "main" javax.naming.ConfigurationException. Root exception is java.rmi.MarshalException: error marshalling return; nested exception is:
java.io.NotSerializableException: com.forex.FxCodeBean_kupq2p_LocalHomeImpl
Start server side stack trace:
java.rmi.MarshalException: error marshalling return; nested exception is:
java.io.NotSerializableException: com.forex.FxCodeBean_kupq2p_LocalHomeImpl
java.io.NotSerializableException: com.forex.FxCodeBean_kupq2p_LocalHomeImpl
at java.io.ObjectOutputStream.outputObject(ObjectOutputStream.java:1148)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:366)
at weblogic.common.internal.ChunkedObjectOutputStream.writeObject(ChunkedObjectOutputStream.java:115)
at weblogic.common.internal.ChunkedObjectOutputStream.writeObject(ChunkedObjectOutputStream.java:121)
at weblogic.jndi.internal.RootNamingNode_WLSkel.invoke(Unknown Source)
at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:305)
at weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerRef.java:93)
at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:274)
at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:22)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
End server side stack trace
; nested exception is:
java.io.NotSerializableException: com.forex.FxCodeBean_kupq2p_LocalHomeImpl
Start server side stack trace:
java.io.NotSerializableException: com.forex.FxCodeBean_kupq2p_LocalHomeImpl
at java.io.ObjectOutputStream.outputObject(ObjectOutputStream.java:1148)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:366)
at weblogic.common.internal.ChunkedObjectOutputStream.writeObject(ChunkedObjectOutputStream.java:115)
at weblogic.common.internal.ChunkedObjectOutputStream.writeObject(ChunkedObjectOutputStream.java:121)
at weblogic.jndi.internal.RootNamingNode_WLSkel.invoke(Unknown Source)
at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:305)
at weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerRef.java:93)
at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:274)
at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:22)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
End server side stack trace
java.io.NotSerializableException: com.forex.FxCodeBean_kupq2p_LocalHomeImpl
Start server side stack trace:
java.io.NotSerializableException: com.forex.FxCodeBean_kupq2p_LocalHomeImpl
at java.io.ObjectOutputStream.outputObject(ObjectOutputStream.java:1148)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:366)
at weblogic.common.internal.ChunkedObjectOutputStream.writeObject(ChunkedObjectOutputStream.java:115)
at weblogic.common.internal.ChunkedObjectOutputStream.writeObject(ChunkedObjectOutputStream.java:121)
at weblogic.jndi.internal.RootNamingNode_WLSkel.invoke(Unknown Source)
at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:305)
at weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerRef.java:93)
at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:274)
at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:22)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
End server side stack trace
<<no stack trace available>>
-------------------- Local Home Interface as below ------------------
package com.forex.fate;
import javax.ejb.*;
import java.rmi.*;
public interface FxCodeLocalHome extends EJBLocalHome {
FxCodeLocal create(Integer tkey) throws CreateException;
public FxCodeLocal findByPrimaryKey(Integer key) throws FinderException;
}
----------- Local Component interface as below -------------
package com.forex.fate;
import javax.ejb.*;
public interface FxCodeLocal extends EJBLocalObject {
public Integer getFxKey();
public void setFxKey(Integer key);
}
------------- Bean Class as below ----------
package com.forex.fate;
import javax.ejb.*;
public abstract class FxCodeBean implements EntityBean {
protected EntityContext context;
public void ejbRemove(){}
public void ejbLoad(){}
public void ejbStore(){}
public void ejbActivate(){}
public void ejbPassivate(){}
public void unsetEntityContext(){}
public void setEntityContext(EntityContext ctx){
context = ctx;
}
public Integer ejbCreate(Integer tkey) throws CreateException {
return null;
}
public void ejbPostCreate(Integer tkey) throws CreateException {
}
abstract public Integer getFxKey();
abstract public void setFxKey(Integer key);
}
------------------ ejb-jar.xml as below ----------
<?xml version="1.0"?>
<!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>
<entity>
<ejb-name>fxcode</ejb-name>
<local-home>com.forex.fate.FxCodeLocalHome</local-home>
<local>com.forex.fate.FxCodeLocal</local>
<ejb-class>com.forex.fate.FxCodeBean</ejb-class>
<persistence-type>Container</persistence-type>
<prim-key-class>java.lang.Integer</prim-key-class>
<reentrant>False</reentrant>
<cmp-version>2.x</cmp-version>
<cmp-field><field-name>fxKey</field-name></cmp-field>
<primkey-field>fxKey</primkey-field>
</entity>
</enterprise-beans>
<assembly-descriptor>
<container-transaction>
<method>
<ejb-name>fxcode</ejb-name>
<method-name>*</method-name>
</method>
<trans-attribute>Required</trans-attribute>
</container-transaction>
</assembly-descriptor>
</ejb-jar>
------------- weblogic-ejb-jar.xml as below -------------
<?xml version="1.0"?>
<!DOCTYPE weblogic-ejb-jar PUBLIC
'-//BEA Systems, Inc.//DTD WebLogic 6.0.0 EJB//EN'
'http://www.bea.com/servers/wls600/dtd/weblogic-ejb-jar.dtd'>
<weblogic-ejb-jar>
<weblogic-enterprise-bean>
<ejb-name>fxcode</ejb-name>
<entity-descriptor>
<persistence>
<persistence-type>
<type-identifier>WebLogic_CMP_RDBMS</type-identifier>
<type-version>6.0</type-version>
<type-storage>META-INF/weblogic-cmp-rdbms-jar.xml</type-storage>
</persistence-type>
<persistence-use>
<type-identifier>WebLogic_CMP_RDBMS</type-identifier>
<type-version>6.0</type-version>
</persistence-use>
</persistence>
</entity-descriptor>
<local-jndi-name>fxcode</local-jndi-name>
</weblogic-enterprise-bean>
</weblogic-ejb-jar>
--------- weblogic rdbms jar xml as below --------
<!DOCTYPE weblogic-rdbms-jar PUBLIC
'-//BEA Systems, Inc.//DTD WebLogic 6.0.0 EJB RDBMS Persistence//EN'
'http://www.bea.com/servers/wls600/dtd/weblogic-rdbms20-persistence-600.dtd'>
<weblogic-rdbms-jar>
<weblogic-rdbms-bean>
<ejb-name>fxcode</ejb-name>
<data-source-name>FXDEV</data-source-name>
<table-name>fx_code</table-name>
<field-map>
<cmp-field>fxKey</cmp-field>
<dbms-column>fx_key</dbms-column>
</field-map>
</weblogic-rdbms-bean>
</weblogic-rdbms-jar>
