Hello.
I'm new to
JBoss. I'm trying to make a connection to my mssql database. I have created a
EJB and use the
ant compiler to compile my source code.
I get a Class Not Found Exception as you can see in the debug.
The Classloader fails.
I run W2K with j2ee1.4 and jdk1.4.2_3. Jboss version: 3.2.3
THE ERROR:
*****************************************************************
15:53:54,291 INFO [MainDeployer] Starting deployment of package: file:/C:/jboss
-3.2.3/server/default/deploy/ghem3.jar
15:53:54,582 WARN [verifier] EJB spec violation:
Bean : DatabaseHandlerEJB
Section: 22.2
Warning: The Bean Provider must specify the fully-qualified name of the
Java cla
ss that implements the enterprise bean's business methods in the <ejb-class> ele
ment.
Info : Class not found on 'com.ghem3.dbhandler.DatabaseHandlerBean': No ClassL
oaders found for: com.ghem3.dbhandler.DatabaseHandlerBean
15:53:54,582 ERROR [MainDeployer] could not create deployment: file:/C:/jboss-3.
2.3/server/default/deploy/ghem3.jar
org.jboss.deployment.DeploymentException: Verification of Enterprise Beans faile
d, see above for error messages.
at org.jboss.ejb.EJBDeployer.create(EJBDeployer.java:491)
at org.jboss.deployment.MainDeployer.create(MainDeployer.java:786)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:641)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:605)
at sun.reflect.GeneratedMethodAccessor20.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.jboss.mx.capability.ReflectedMBeanDispatcher.invoke(ReflectedMBea
nDispatcher.java:284)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:546)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:177)
at $Proxy6.deploy(Unknown Source)
at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymen
tScanner.java:302)
at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentS
canner.java:476)
at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.
doScan(AbstractDeploymentScanner.java:201)
at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.
loop(AbstractDeploymentScanner.java:212)
at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.
run(AbstractDeploymentScanner.java:191)
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MY ejb-jar FILE:
*****************************************************************
<!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>
<ejb-name>DatabaseHandlerEJB</ejb-name>
ejb.interfaces.com.ghem3.dbhandler.DatabaseHandlerHome
ejb.interfaces.com.ghem3.dbhandler.DatabaseHandlerRemote
<ejb-class>com.ghem3.dbhandler.DatabaseHandlerBean</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Container</transaction-type>
</enterprise-beans>
<assembly-descriptor>
<security-role>
This role represents everyone who is allowed full access to the beans.
<role-name>everyone</role-name>
</security-role>
<method-permission>
<role-name>everyone</role-name>
<ejb-name>DatabaseHandlerEJB</ejb-name>
<method-name>*</method-name>
</method-permission>
<container-transaction>
<ejb-name>DatabaseHandlerEJB</ejb-name>
<method-name>*</method-name>
<trans-attribute>Required</trans-attribute>
</container-transaction>
</assembly-descriptor>
</ejb-jar>
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MY Jboss.xml FILE:
*****************************************************************
<?xml version="1.0"?>
<enterprise-beans>
<ejb-name>DatabaseHandlerEJB</ejb-name>
<jndi-name>DatabaseHandlerRemote</jndi-name>
</enterprise-beans>
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MY BEAN CLASS:
*****************************************************************
package com.ghem3.dbhandler;
import javax.ejb.SessionBean;
import javax.ejb.EJBException;
import javax.ejb.SessionContext;
import java.util.LinkedList;
import java.util.Map;
import java.util.StringTokenizer;
import java.sql.SQLException;
import java.sql.Connection;
import java.util.*;
import java.sql.*;
import java.sql.Statement;
import java.sql.ResultSet;
import java.rmi.RemoteException;
public class DatabaseHandlerBean implements SessionBean {
private SessionContext context;
private static DatabaseHandlerBean instance;
private static int lockID = -1;
public DatabaseHandlerBean ejbCreate(){}
static {
if (instance == null)
instance = new DatabaseHandlerBean();
}
public static DatabaseHandlerBean getInstance() {
return (instance);
}
/*
* ...
*/
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MY HOME INTERFACE:
*****************************************************************
package com.ghem3.dbhandler;
import javax.ejb.EJBHome;
import javax.ejb.CreateException;
import java.rmi.RemoteException;
public interface DatabaseHandlerHome extends EJBHome{
DatabaseHandlerRemote create() throws RemoteException, CreateException;
}
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MY REMOTE INTERFACE:
*****************************************************************
package com.ghem3.dbhandler;
import javax.ejb.EJBObject;
import java.sql.SQLException;
import java.util.Map;
public interface DatabaseHandlerRemote extends EJBObject {
public DatabaseHandlerBean getInstance();
public DataSet select(
String columns, String from, String criteria, boolean lock, Object requester) throws SQLException, DBLockException;
public int insert(String table, String columns, String values) throws SQLException;
public int delete(String table, String criteria) throws DBLockException;
}
*****************************************************************
Anyone with a solution??
