Cannot force MXBean to connect to database through JConsole

I just hope that there is someone who has seen and resolved this problem. I have MBean and MXBean classes. Both use the same class of service to access the database through the DAO class. I am using spring 3.0 to initialize these classes and using JConsole to test these beans. Both of these beans have the same method name to access their class of service, say methodA (). But when connected to the oracle database, only the MBean class returns data. Another MXBean class causes some errors.

Here are the errors

EL Severe]: 2012-05-18 10:37:54.134--ServerSession(1992289)--Thread(Thread[RMI TCP Connection(6)-10.208.138.241,5,RMI Runtime])--java.lang.IllegalArgumentException: interface oracle.ucp.jdbc.LabelableConnection is not visible from class loader
    at java.lang.reflect.Proxy.getProxyClass(Proxy.java:353)
    at java.lang.reflect.Proxy.newProxyInstance(Proxy.java:581)
    at oracle.ucp.jdbc.proxy.ConnectionProxyFactory.createConnectionProxy(ConnectionProxyFactory.java:78)
    at oracle.ucp.jdbc.PoolDataSourceImpl.getConnection(PoolDataSourceImpl.java:658)
    at oracle.ucp.jdbc.PoolDataSourceImpl.getConnection(PoolDataSourceImpl.java:613)
    at oracle.ucp.jdbc.PoolDataSourceImpl.getConnection(PoolDataSourceImpl.java:607)
    at org.springframework.jdbc.datasource.DelegatingDataSource.getConnection(DelegatingDataSource.java:83)
    at com.trgr.cobalt.dataorch.datasource.BaseDODataSource.getRawConnection(BaseDODataSource.java:76)
    at com.trgr.cobalt.dataorch.datasource.BaseDODataSource.getConnection(BaseDODataSource.java:46)
    at com.trgr.cobalt.dataorch.datasource.BaseDODataSource.getConnection(BaseDODataSource.java:35)
    at org.eclipse.persistence.sessions.JNDIConnector.connect(JNDIConnector.java:126)
    at org.eclipse.persistence.sessions.JNDIConnector.connect(JNDIConnector.java:94)
    at org.eclipse.persistence.sessions.DatasourceLogin.connectToDatasource(DatasourceLogin.java:162)
    at org.eclipse.persistence.internal.databaseaccess.DatasourceAccessor.connectInternal(DatasourceAccessor.java:327)
    at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.connectInternal(DatabaseAccessor.java:291)
    at org.eclipse.persistence.internal.databaseaccess.DatasourceAccessor.connect(DatasourceAccessor.java:415)
    at org.eclipse.persistence.sessions.server.ConnectionPool.buildConnection(ConnectionPool.java:155)
    at org.eclipse.persistence.sessions.server.ExternalConnectionPool.startUp(ExternalConnectionPool.java:118)
    at org.eclipse.persistence.sessions.server.ServerSession.connect(ServerSession.java:495)
    at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.login(DatabaseSessionImpl.java:627)
    at org.eclipse.persistence.internal.jpa.EntityManagerFactoryProvider.login(EntityManagerFactoryProvider.java:230)
    at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:389)
    at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.getServerSession(EntityManagerFactoryImpl.java:164)

Here is my spring configuration

<bean id="exporter" class="org.springframework.jmx.export.MBeanExporter"
    lazy-init="false">
    <property name="namingStrategy" ref="namingStrategy"></property>
    <property name="assembler" ref="assembler"></property>
    <property name="autodetect" value="true" />
</bean>

<bean id="attributeSource"
    class="org.springframework.jmx.export.annotation.AnnotationJmxAttributeSource" />
<bean id="assembler"
    class="org.springframework.jmx.export.assembler.MetadataMBeanInfoAssembler">
    <property name="attributeSource" ref="attributeSource" />
</bean>
<bean id="namingStrategy"
    class="org.springframework.jmx.export.naming.MetadataNamingStrategy">
    <property name="attributeSource" ref="attributeSource" />
</bean>


<bean class="myclass.jmx.DocumentMBean"
    p:schedulerService-ref="documentService" />

<bean class="myclass.jmx.DocumentMXBean"
    p:schedulerService-ref="documentService" />

DocumentMBean MBean. DocumentMXBean - MXBean. beans serviceService, DAO Oracle. DocumentMBean . DocumentMXBean , .

- , oracle.ucp.jdbc.LabelableConnection ? , MXBean. MBean . jar, WEB-INF/lib. Tomcat. Tomcat Eclipse.

1:

, jar "" Tomcat Eclipse. , MBeans JConsole/java -, , . MXBeans, JConsole/java Tomcat.

: Tomcat/Eclipse/Java ( -) MBean MXBean?

2:

, - spring -, Tomcat MXBean JVM, oracle. , - , JVM. :

    try
    {
    // your codes here

    // Get the current class-loader. This might be the class-loader from Tomcat
    ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();

    // Set the class-loader to be the one from the DO and not the one from Tomcat
    Thread.currentThread().setContextClassLoader(getClass().getClassLoader());

    // your codes here
    }
    catch (Exception e)
    {
       // your codes here
    }
    finally
    {
       // Remember to set back the original class-loader
       Thread.currentThread().setContextClassLoader(contextClassLoader);
    }