CMP - failed to retrieve data from database - but NO exception..

Hi, I've developed this simple CMP to retrieve user Group information from database. It failed to retrieve data from database but no exception is thrown (Yes, I stepped through the code, nothing happenned). And now I'm kind of stuck without any error message to start debuggin with. So, I'm just asking for general advice/direction...

1. CLIENT side
Here's the Strut's action class ** ie. the CLIENT ** (yes, that's where they retrieve local proxy to CMP directly, as opposed to doing it thru a session bean):

Code:
try {
...
...
BasicConfigurator.configure();
logger.debug("PrepareLoginAction invoked");
		    
context = new InitialContext();
Object ref = context.lookup(groupJNDI);
home = (GroupLocalHome)PortableRemoteObject.narrow(ref, GroupLocalHome.class);

******** THAT's MY CMP local proxy: GroupLocal, Nothing is retrieved here but NO EXCEPTION ********
groups=home.findAllGroups(); 
...				
return mapping.findForward("success");
...
} catch(Exception e) {
  ***** NO EXCEPTION CAUGHT *****
}
2. The CMP GroupBean:
Code:
/**
 *  @author norman_lm_fung@hotmail.com
 *
 *  @ejb.bean	
 * 			name="GroupEJB"
 * 			local-jndi-name="ejb/UserGroup"
 * 			display-name="User Group EJB"
 * 			description="User Group EJB"
 * 			cmp-version="2.x"
 * 			type="CMP"
 * 			view-type="local"
 * 			schema="Group"
 * 			reentrant="false"
 * 			primkey-field="UIN"
 * 
 *  @ejb.persistence
 * 			table-name="GROUPS"
 * 
 *  @ejb.finder
 * 			query="SELECT OBJECT(g) FROM Group AS g"
 * 			signature="java.util.Collection findAllGroups()"
          NOTE: THIS FINDER IS NOT SENDING ANYTHING TO DATABASE.
 * 
 *  @ejb.interface
 *     		local-class="com.aa.samples.interfaces.GroupLocal"
 * 
 *  @ejb.home
 * 		 		local-class="com.aa.samples.interfaces.GroupLocalHome"
 * 
 *  @jboss.persistence 
 * 			datasource="java:/jdbc/dev01"  NOTE: JNDI name of the connection is "jdbc/dev01", as specified in "mysql-ds.xml" in JBoss deploy folder. I tried "java:jdbc/dev01" also - neither of the two works.
 * 			datasource-mapping="mySQL"
 * 			create-table="False"
 * 			remove-table="False"
 * 			table-name="GROUPS"
 * 
 */
public abstract class GroupBean implements EntityBean {
  
  protected EntityContext etx;
  protected Logger logger =Logger.getLogger(GroupBean.class);
  
  /*
   * 1. Implementing Home interface
   */
  
  /**
   * @param name
   * @ejb.create-method
   */
  public Integer ejbCreate(String name, String description) throws CreateException {
  	BasicConfigurator.configure();
  	logger.debug("GroupBean.ejbCreate invoked.");
  	
  	if(name==null) {
  		throw new CreateException("name null");
  	}
  	
  	setName(name);
  	setDescription(description);
  	
  	return null;
  }
  
  public void ejbPostCreate(String name, String description) throws CreateException {
  	BasicConfigurator.configure();
  	logger.debug("GroupBean.ejbPostCreate invoked.");
  	
  	return;
  }
  
  /*
   * 2. Persistence methods:
   */  
  
  /**
   * @ejb.persistent-field
   * @ejb.persistence
   * 			column-name="UIN"
   * 			sql-type="INTEGER"
   * @ejb.pk-field
   * @ejb.interface-method
   */
  public abstract	Integer getUIN();
  
  /**
   * @ejb.interface-method
   */
  public abstract void setUIN(Integer UIN);
  
  /**
   * @ejb.persistent-field
   * @ejb.persistence
   * 			column-name="name"
   * 			sql-type="VARCHAR"
   * @ejb.interface-method
   */
  public abstract String getName();
  
  /**
   * @ejb.interface-method
   */
  public abstract void setName(String name);
  
  /**
   * @ejb.persistent-field
   * @ejb.persistence
   * 			column-name="description"
   * 			sql-type="VARCHAR"
   * @ejb.interface-method
   */
  public abstract String getDescription();
  
  /**
   * @ejb.interface-method
   */
  public abstract void setDescription(String description);
  
  /**
   * @ejb.persistent-field
   * @ejb.persistence
   * 			column-name="isSuspended"
   * 			sql-type="TINYINT"
   * @ejb.interface-method
   */
  public abstract Boolean getIsSuspended();
  
  /**
   * @ejb.interface-method
   */
  public abstract void setIsSuspended(Boolean isSuspended);
  
  
  /*
   * 3. Implementing EntityBean interface:
   */
  public void ejbRemove() throws RemoveException {
  	BasicConfigurator.configure();
  	logger.debug("GroupBean.ejbRemove invoked.");
  	
  	return;
  }  
  
  public void ejbLoad() {
  	BasicConfigurator.configure();
  	logger.debug("GroupBean.ejbLoad invoked.");
  	
  	return;
  }

  public void ejbStore() {
  	BasicConfigurator.configure();
  	logger.debug("GroupBean.ejbStore invoked.");
  	
  	return;
  }

  public void ejbActivate() {
  	BasicConfigurator.configure();
  	logger.debug("GroupBean.ejbActivate invoked.");
  	
  	return;
  }

  public void ejbPassivate() {
  	BasicConfigurator.configure();
  	logger.debug("GroupBean.ejbPassivate invoked.");
  	
  	return;
  }

  public void unsetEntityContext() {
  	BasicConfigurator.configure();
  	logger.debug("GroupBean.unsetEntityContext invoked.");
  	
  	etx= null;
  	
  	return;
  }

  public void setEntityContext(EntityContext etx) {
  	BasicConfigurator.configure();
  	logger.debug("GroupBean.setEntityContext invoked.");

  	this.etx= etx;
  	
  	return;
  }
  
}

3. SCREEN DUMP
Code:
...
... lots of stuff...
23:15:41,553 INFO  [RequestProcessor] Processing a 'POST' for path '/prepareLoginAction'
23:15:48,368 INFO  [STDOUT] 461330 [http-0.0.0.0-8080-Processor25] DEBUG com.aa.samples.actions.PrepareLoginAction  - PrepareLoginAction invoked
ERROR: invalid console appender config detected, console stream is looping23:15:53,559 INFO  [STDOUT] 466521 [http-0.0.0.0-8080-Processor25] DEBUG com.aa.samples.beans.GroupBean  - GroupBean.setEntityContext invoked.
23:15:53,561 INFO  [STDOUT] 466521 [http-0.0.0.0-8080-Processor25] DEBUG com.aa.samples.beans.GroupBean  - GroupBean.setEntityContext invoked.
23:15:53,566 INFO  [STDOUT] 466528 [http-0.0.0.0-8080-Processor25] DEBUG org.jboss.ejb.plugins.cmp.jdbc.JDBCEJBQLQuery.GroupEJB#findAllGroups  - Executing SQL: SELECT t0_g.UIN FROM GROUPEJB t0_g
23:15:53,568 INFO  [STDOUT] 466528 [http-0.0.0.0-8080-Processor25] DEBUG org.jboss.ejb.plugins.cmp.jdbc.JDBCEJBQLQuery.GroupEJB#findAllGroups  - Executing SQL: SELECT t0_g.UIN FROM GROUPEJB t0_g

... nothing related to JDBC/exceptions...
4. mysql-ds.xml

I still haven't been able to get to the bottom of it. The only thing I know is that for sure my CMP "GroupBean" is sending nothing to target database. I used p6spy and intercepted anything to/from database.

Code:
<datasources>
  <local-tx-datasource>
    <jndi-name>jdbc/dev01</jndi-name>
    <connection-url>jdbc:mysql://127.0.0.1:3306/dev01</connection-url>
    <driver-class>com.p6spy.engine.spy.P6SpyDriver</driver-class>
    <user-name>someuser</user-name>
    <password>somepasswd</password>
  </local-tx-datasource>
</datasources>
5. XDoclet generated "jbosscmp--jdbc.xml" (NOTE: The datasource tag looks correct....)

Code:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE jbosscmp-jdbc PUBLIC "-//JBoss//DTD JBOSSCMP-JDBC 4.0//EN" "http://www.jboss.org/j2ee/dtd/jbosscmp-jdbc_4_0.dtd">

<jbosscmp-jdbc>
   <defaults>
   </defaults>
   <enterprise-beans>
      <entity>
         <ejb-name>GroupEJB</ejb-name>
		 <datasource>java:/jdbc/dev01</datasource>
		 <datasource-mapping>mySQL</datasource-mapping>

         <table-name>GROUPS</table-name>

         <cmp-field>
            <field-name>UIN</field-name>
            <column-name>UIN</column-name>
        </cmp-field>
         <cmp-field>
            <field-name>name</field-name>
            <column-name>name</column-name>
        </cmp-field>
         <cmp-field>
            <field-name>description</field-name>
            <column-name>description</column-name>
        </cmp-field>
         <cmp-field>
            <field-name>isSuspended</field-name>
            <column-name>isSuspended</column-name>
        </cmp-field>

      </entity>
   </enterprise-beans>
</jbosscmp-jdbc>

Any idea? Thanks in advance!