Dynamic Server_Stub.class creation -- will it really happen??

hi
I am using jdk 1.5.0 and my server code is like this
import java.rmi.*;
import java.rmi.server.*;
import java.net.*;
public class Server   implements RemoteInterface{
public Server() throws RemoteException{
     super();
public static void main(String[] s ){
          try{
               Server server = new Server();
               UnicastRemoteObject.exportObject(server);
               Naming.rebind("Server",server);
          System.out.println("Bound");
          System.out.println(server.getAdvice(0));
          }catch(RemoteException e){
               e.printStackTrace();
          }catch(MalformedURLException ue){
                    ue.printStackTrace();
public String  getAdvice(int adviceNo) throws RemoteException{
     String [] advices = { "Don't lie", "Do always Good","Keep Chantic sacred names of God"};
     return advices[adviceNo];
}when i tried to run this it thows this exception without creating the stub
        java.lang.ClassNotFoundException: Server_Stub
        at sun.rmi.server.Util.createStub(Unknown Source)
        at sun.rmi.server.Util.createProxy(Unknown Source)
        at sun.rmi.server.UnicastServerRef.exportObject(Unknown Source)
        at java.rmi.server.UnicastRemoteObject.exportObject(Unknown Source)
        at java.rmi.server.UnicastRemoteObject.exportObject(Unknown Source)
        at Server.main(Server.java:17)
Caused by: java.lang.ClassNotFoundException: Server_Stub
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClassInternal(Unknown Source)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Unknown Source)
        ... 6 morebut when i create is mannualy using rmic
it will run smoothly
why is this behaviour??

You want UnicastRemoteObject.exportObject(server,0);See the footnote in the RMI release notes for the reason why.
http://java.sun.com/j2se/1.5.0/docs/guide/rmi/relnotes.html#callout

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    at weblogic.management.internal.RemoteMBeanServerImpl.createAdminMBean(RemoteMBean
    ServerImpl.java:278)
    at weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.java:
    635)
    at weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.java:
    621)
    at weblogic.management.internal.AdminMBeanHomeImpl.createAdminMBean(AdminMBeanHome
    Impl.java:397)
    at weblogic.management.internal.AdminMBeanHomeImpl_WLSkel.invoke(Unknown
    Source)
    at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298)
    at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:267)
    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
    - with nested exception:
    [javax.management.InstanceAlreadyExistsException: domain:Name=ContentConnectionPool,Type=J
    DBCConnectionPool
    Start server side stack trace:
    javax.management.InstanceAlreadyExistsException: domain:Name=ContentConnectionPool,Type=JD
    BCConnectionPool
            at com.sun.management.jmx.RepositorySupport.addMBean(RepositorySupport.java:134)
            at com.sun.management.jmx.MBeanServerImpl.internal_addObject(MBeanServerImpl.java:
    2352)
            at com.sun.management.jmx.MBeanServerImpl.registerMBean(MBeanServerImpl.java:874)
            at weblogic.management.internal.RemoteMBeanServerImpl.registerMBean(RemoteMBeanSer
    verImpl.java:181)
            at weblogic.management.internal.Helper.createMBean(Helper.java:376)
            at weblogic.management.internal.Helper.createAdminMBean(Helper.java:291)
            at weblogic.management.internal.RemoteMBeanServerImpl.createAdminMBean(RemoteMBean
    ServerImpl.java:278)
            at weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.java:
    635)
            at weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.java:
    621)
            at weblogic.management.internal.AdminMBeanHomeImpl.createAdminMBean(AdminMBeanHome
    Impl.java:397)
            at weblogic.management.internal.AdminMBeanHomeImpl_WLSkel.invoke(Unknown
    Source)
            at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298)
            at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:267)
            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
    at weblogic.jdbc.common.internal.ConnectionPool.dynaStartup(ConnectionPool.java:47
    2)
    at weblogic.jdbc.common.internal.ConnectionPool.createPool(ConnectionPool.java:727
    at weblogic.jdbc.common.internal.ConnectionPool.createPool(ConnectionPool.java:709
    at com.thc.ids.inf.framework.opf.rdbms.datastore.ConnectionPoolCreator.createConne
    ctionPool(ConnectionPoolCreator.java:82)
    at com.thc.ids.inf.framework.opf.datastore.DataStoreRepository.createConnectionPoo
    lIfNonExistent(DataStoreRepository.java:211)
    at com.thc.ids.inf.util.persistence.content.ConnectionPoolInitializer.createConnec
    tionPoolIfNeeded(ConnectionPoolInitializer.java:48)
    at com.thc.ids.inf.services.business.crs.spi.oracle.OracleRetrievalProvider.create
    ConnectionPoolIfNeeded(Unknown Source)
    at com.thc.ids.inf.services.business.crs.spi.oracle.OracleRetrievalProvider.getIma
    ge(Unknown Source)
    at com.thc.ids.inf.services.business.crs.ContentRetrievalService.getImage(Unknown
    Source)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.thc.ids.inf.util.reflection.MethodDescription.invokeMethod(MethodDescriptio
    n.java:181)
    at com.thc.ids.inf.util.reflection.MethodInvocation.invoke(MethodInvocation.java:7
    9)
    at com.thc.ids.inf.framework.service.J2EE.ejb.ServiceBean.invoke(ServiceBean.java:
    186)
    at com.thc.ids.inf.framework.service.J2EE.ejb.ServiceBean_bjedmi_EOImpl.invoke(Ser
    viceBean_bjedmi_EOImpl.java:37)
    at com.thc.ids.inf.framework.service.J2EE.ejb.ServiceBean_bjedmi_EOImpl_WLSkel.inv
    oke(Unknown Source)
    at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298)
    at weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerRef.java:93
    at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:267)
    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)

    The only way to do it is using MBeans. You could search this newsgroup
    for "JDBCConnectionPoolMBean" to get an idea of how it could be done.
    Slava
    P.S. http://search.bea.com/weblogic/gonews
    "Mark Mortensen" <[email protected]> wrote in message
    news:[email protected]...
    >
    Slava,
    I am working with Mike on this issue and wanted to add some moreclarifications.
    We have a two server cluster where one of the EJB's on one of the Managedservers
    creates the connection pool. The problem comes in when a request comes tothe
    second server in the cluster. The connection pool is created by the firstserver
    but it is only assigned to the first server in the targets section on theconsole.
    It isn't assigned to the cluster. Is there a way to programmaticallyassign the
    pool to the cluster instead of just the server that created the pool?
    -Mark
    "Michael Dolear" <[email protected]> wrote:
    Hi Slava,
    Here is what I am doing. The code is spread across a couple of classes.
    I am using
    what was described in BEA's doc on dynamic connection pool creation.
    I didn't
    see anything about MBean apis required:
    * Dynamically create a connection pool using
    aConnectionPoolProperties.
    Please
    see ConnectionPoolCreator
    * for the required properties that must be sent in.
    * @param aConnectionPoolProperties
    public synchronized void createConnectionPoolIfNonExistent(Properties
    aConnectionPoolProperties)
    throwsPersistenceFrameworkInitializationException
    ConnectionPoolCreator tempPoolCreator;
    Pool tempPool;
    tempPoolCreator = new ConnectionPoolCreator();
    tempPool =tempPoolCreator.getConnectionPool(aConnectionPoolProperties);
    if (tempPool == null)
    tempPoolCreator.createConnectionPool(aConnectionPoolProperties);
    >>
    * Create Connection pool given the properties that I have beenconfigured
    with
    * @return Pool
    public Pool createConnectionPool(Properties aConnectionProperties)
    throwsPersistenceFrameworkInitializationException
    JdbcServices tempServices;
    try
    tempServices = this.lookupJdbcServices();
    tempServices.createPool(aConnectionProperties);
    returntempServices.getPool(aConnectionProperties.getProperty(CONNECTION_POOL_NAME)
    catch (Exception e)
    PersistenceFrameworkUtils.logException(e);
    throw newPersistenceFrameworkInitializationException(e.getMessage());
    * Answer a connectionPool or null.
    * @return Pool
    public Pool getConnectionPool(Properties aConnectionProperties)
    throwsPersistenceFrameworkInitializationException
    JdbcServices tempServices;
    try
    tempServices = this.lookupJdbcServices();
    if (tempServices.poolExists(
    aConnectionProperties.getProperty(CONNECTION_POOL_NAME)))
    return tempServices.getPool(
    aConnectionProperties.getProperty(CONNECTION_POOL_NAME));
    else
    return null;
    catch (Exception e)
    PersistenceFrameworkUtils.logException(e);
    throw
    newPersistenceFrameworkInitializationException(e.getMessage());
    "Slava Imeshev" <[email protected]> wrote:
    Hi Michael,
    Could you show us the code? Without looking at the code
    I can only say that JdbcServices.poolExists(someName)
    returns true only in case the pool is up and running.
    If the connection pool MBean was created but not assigned
    a target, subsequent tries to create it would fail.
    Regards,
    Slava Imeshev
    "Michael Dolbear" <[email protected]> wrote in message
    news:[email protected]...
    Hi,
    I am trying to create a connection pool in a clustered environment.This
    connection
    pool is created lazily behind a Stateless Session Bean. We first
    attempt
    to determine
    whether, the connection pool exists usingJdbcServices.poolExists(someName), and
    create it if it does not exist. A failure occurs on creation becauseit
    looks
    like the connection pool might have been created by a bean on a
    different
    weblogic
    VM instance. Is there any way to dynamically create a connection pooland
    make
    it visible to the whole cluster? Thanks in advance for any help.
    Michael
    Dolbear
    Mar 28, 2002 5:35:08 PM MST> <Info> <JDBC> <Checking existence ofconnection pool
    Content
    ConnectionPool requested by user guest>
    <Mar 28, 2002 5:35:08 PM MST> <Info> <JDBC> <Creating connection poolContentConnectionPoo
    l requested by user guest>
    weblogic.common.ResourceException:weblogic.management.MBeanCreationException:
    Start server side stack trace:
    javax.management.InstanceAlreadyExistsException:domain:Name=ContentConnectionPool,Type=JD
    BCConnectionPool
    at
    com.sun.management.jmx.RepositorySupport.addMBean(RepositorySupport.java:1
    34
    at
    com.sun.management.jmx.MBeanServerImpl.internal_addObject(MBeanServerImpl.
    ja
    va:
    2352)
    at
    com.sun.management.jmx.MBeanServerImpl.registerMBean(MBeanServerImpl.java:
    87
    4)
    at
    weblogic.management.internal.RemoteMBeanServerImpl.registerMBean(RemoteMBe
    an
    Ser
    verImpl.java:181)
    atweblogic.management.internal.Helper.createMBean(Helper.java:376)
    atweblogic.management.internal.Helper.createAdminMBean(Helper.java:291)
    at
    weblogic.management.internal.RemoteMBeanServerImpl.createAdminMBean(Remote
    MB
    ean
    ServerImpl.java:278)
    at
    weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.
    ja
    va:
    635)
    at
    weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.
    ja
    va:
    621)
    at
    weblogic.management.internal.AdminMBeanHomeImpl.createAdminMBean(AdminMBea
    nH
    ome
    Impl.java:397)
    atweblogic.management.internal.AdminMBeanHomeImpl_WLSkel.invoke(Unknown
    Source)
    atweblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298)
    at
    weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:267
    at
    weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java
    :2
    2)
    at
    weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
    at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
    --------------- nested within: ------------------
    weblogic.management.MBeanCreationException: - with nested exception:
    [javax.management.InstanceAlreadyExistsException:domain:Name=ContentConnectionPool,Type=J
    DBCConnectionPool]
    atweblogic.management.internal.Helper.createMBean(Helper.java:383)
    atweblogic.management.internal.Helper.createAdminMBean(Helper.java:291)
    at
    weblogic.management.internal.RemoteMBeanServerImpl.createAdminMBean(Remote
    MB
    ean
    ServerImpl.java:278)
    at
    weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.
    ja
    va:
    635)
    at
    weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.
    ja
    va:
    621)
    at
    weblogic.management.internal.AdminMBeanHomeImpl.createAdminMBean(AdminMBea
    nH
    ome
    Impl.java:397)
    atweblogic.management.internal.AdminMBeanHomeImpl_WLSkel.invoke(Unknown
    Source)
    atweblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298)
    at
    weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:267
    at
    weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java
    :2
    2)
    at
    weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
    at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
    End server side stack trace
    - with nested exception:
    [javax.management.InstanceAlreadyExistsException:domain:Name=ContentConnectionPool,Type=J
    DBCConnectionPool
    Start server side stack trace:
    javax.management.InstanceAlreadyExistsException:domain:Name=ContentConnectionPool,Type=JD
    BCConnectionPool
    at
    com.sun.management.jmx.RepositorySupport.addMBean(RepositorySupport.java:1
    34
    at
    com.sun.management.jmx.MBeanServerImpl.internal_addObject(MBeanServerImpl.
    ja
    va:
    2352)
    at
    com.sun.management.jmx.MBeanServerImpl.registerMBean(MBeanServerImpl.java:
    87
    4)
    at
    weblogic.management.internal.RemoteMBeanServerImpl.registerMBean(RemoteMBe
    an
    Ser
    verImpl.java:181)
    atweblogic.management.internal.Helper.createMBean(Helper.java:376)
    atweblogic.management.internal.Helper.createAdminMBean(Helper.java:291)
    at
    weblogic.management.internal.RemoteMBeanServerImpl.createAdminMBean(Remote
    MB
    ean
    ServerImpl.java:278)
    at
    weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.
    ja
    va:
    635)
    at
    weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.
    ja
    va:
    621)
    at
    weblogic.management.internal.AdminMBeanHomeImpl.createAdminMBean(AdminMBea
    nH
    ome
    Impl.java:397)
    atweblogic.management.internal.AdminMBeanHomeImpl_WLSkel.invoke(Unknown
    Source)
    atweblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298)
    at
    weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:267
    at
    weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java
    :2
    2)
    at
    weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
    at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
    End server side stack trace
    at
    weblogic.jdbc.common.internal.ConnectionPool.dynaStartup(ConnectionPool.ja
    va
    :47
    2)
    at
    weblogic.jdbc.common.internal.ConnectionPool.createPool(ConnectionPool.jav
    a:
    727
    at
    weblogic.jdbc.common.internal.ConnectionPool.createPool(ConnectionPool.jav
    a:
    709
    at
    com.thc.ids.inf.framework.opf.rdbms.datastore.ConnectionPoolCreator.create
    Co
    nne
    ctionPool(ConnectionPoolCreator.java:82)
    at
    com.thc.ids.inf.framework.opf.datastore.DataStoreRepository.createConnecti
    on
    Poo
    lIfNonExistent(DataStoreRepository.java:211)
    at
    com.thc.ids.inf.util.persistence.content.ConnectionPoolInitializer.createC
    on
    nec
    tionPoolIfNeeded(ConnectionPoolInitializer.java:48)
    at
    com.thc.ids.inf.services.business.crs.spi.oracle.OracleRetrievalProvider.c
    re
    ate
    ConnectionPoolIfNeeded(Unknown Source)
    at
    com.thc.ids.inf.services.business.crs.spi.oracle.OracleRetrievalProvider.g
    et
    Ima
    ge(Unknown Source)
    at
    com.thc.ids.inf.services.business.crs.ContentRetrievalService.getImage(Unk
    no
    wn
    Source)
    at java.lang.reflect.Method.invoke(Native Method)
    at
    com.thc.ids.inf.util.reflection.MethodDescription.invokeMethod(MethodDescr
    ip
    tio
    n.java:181)
    at
    com.thc.ids.inf.util.reflection.MethodInvocation.invoke(MethodInvocation.j
    av
    a:7
    9)
    at
    com.thc.ids.inf.framework.service.J2EE.ejb.ServiceBean.invoke(ServiceBean.
    ja
    va:
    186)
    at
    com.thc.ids.inf.framework.service.J2EE.ejb.ServiceBean_bjedmi_EOImpl.invok
    e(
    Ser
    viceBean_bjedmi_EOImpl.java:37)
    at
    com.thc.ids.inf.framework.service.J2EE.ejb.ServiceBean_bjedmi_EOImpl_WLSke
    l.
    inv
    oke(Unknown Source)
    atweblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298)
    at
    weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerRef.ja
    va
    :93
    at
    weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:267
    at
    weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java
    :2
    2)
    at
    weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
    at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
    <Mar 28, 2002 5:35:08 PM MST> <Info> <JDBC> <Checking existence ofconnection
    pool Content
    ConnectionPool requested by user guest>
    <Mar 28, 2002 5:35:08 PM MST> <Info> <JDBC> <Creating connection poolContentConnectionPoo
    l requested by user guest>
    weblogic.common.ResourceException:weblogic.management.MBeanCreationException:
    Start server side stack trace:
    javax.management.InstanceAlreadyExistsException:domain:Name=ContentConnectionPool,Type=JD
    BCConnectionPool
    at
    com.sun.management.jmx.RepositorySupport.addMBean(RepositorySupport.java:1
    34
    at
    com.sun.management.jmx.MBeanServerImpl.internal_addObject(MBeanServerImpl.
    ja
    va:
    2352)
    at
    com.sun.management.jmx.MBeanServerImpl.registerMBean(MBeanServerImpl.java:
    87
    4)
    at
    weblogic.management.internal.RemoteMBeanServerImpl.registerMBean(RemoteMBe
    an
    Ser
    verImpl.java:181)
    atweblogic.management.internal.Helper.createMBean(Helper.java:376)
    atweblogic.management.internal.Helper.createAdminMBean(Helper.java:291)
    at
    weblogic.management.internal.RemoteMBeanServerImpl.createAdminMBean(Remote
    MB
    ean
    ServerImpl.java:278)
    at
    weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.
    ja
    va:
    635)
    at
    weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.
    ja
    va:
    621)
    at
    weblogic.management.internal.AdminMBeanHomeImpl.createAdminMBean(AdminMBea
    nH
    ome
    Impl.java:397)
    atweblogic.management.internal.AdminMBeanHomeImpl_WLSkel.invoke(Unknown
    Source)
    atweblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298)
    at
    weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:267
    at
    weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java
    :2
    2)
    at
    weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
    at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
    --------------- nested within: ------------------
    weblogic.management.MBeanCreationException: - with nested exception:
    [javax.management.InstanceAlreadyExistsException:domain:Name=ContentConnectionPool,Type=J
    DBCConnectionPool]
    atweblogic.management.internal.Helper.createMBean(Helper.java:383)
    atweblogic.management.internal.Helper.createAdminMBean(Helper.java:291)
    at
    weblogic.management.internal.RemoteMBeanServerImpl.createAdminMBean(Remote
    MB
    ean
    ServerImpl.java:278)
    at
    weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.
    ja
    va:
    635)
    at
    weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.
    ja
    va:
    621)
    at
    weblogic.management.internal.AdminMBeanHomeImpl.createAdminMBean(AdminMBea
    nH
    ome
    Impl.java:397)
    atweblogic.management.internal.AdminMBeanHomeImpl_WLSkel.invoke(Unknown
    Source)
    atweblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298)
    at
    weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:267
    at
    weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java
    :2
    2)
    at
    weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
    at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
    End server side stack trace
    - with nested exception:
    [javax.management.InstanceAlreadyExistsException:domain:Name=ContentConnectionPool,Type=J
    DBCConnectionPool
    Start server side stack trace:
    javax.management.InstanceAlreadyExistsException:domain:Name=ContentConnectionPool,Type=JD
    BCConnectionPool
    at
    com.sun.management.jmx.RepositorySupport.addMBean(RepositorySupport.java:1
    34
    at
    com.sun.management.jmx.MBeanServerImpl.internal_addObject(MBeanServerImpl.
    ja
    va:
    2352)
    at
    com.sun.management.jmx.MBeanServerImpl.registerMBean(MBeanServerImpl.java:
    87
    4)
    at
    weblogic.management.internal.RemoteMBeanServerImpl.registerMBean(RemoteMBe
    an
    Ser
    verImpl.java:181)
    atweblogic.management.internal.Helper.createMBean(Helper.java:376)
    atweblogic.management.internal.Helper.createAdminMBean(Helper.java:291)
    at
    weblogic.management.internal.RemoteMBeanServerImpl.createAdminMBean(Remote
    MB
    ean
    ServerImpl.java:278)
    at
    weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.
    ja
    va:
    635)
    at
    weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.
    ja
    va:
    621)
    at
    weblogic.management.internal.AdminMBeanHomeImpl.createAdminMBean(AdminMBea
    nH
    ome
    Impl.java:397)
    atweblogic.management.internal.AdminMBeanHomeImpl_WLSkel.invoke(Unknown
    Source)
    atweblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298)
    at
    weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:267
    at
    weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java
    :2
    2)
    at
    weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
    at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
    End server side stack trace
    at
    weblogic.jdbc.common.internal.ConnectionPool.dynaStartup(ConnectionPool.ja
    va
    :47
    2)
    at
    weblogic.jdbc.common.internal.ConnectionPool.createPool(ConnectionPool.jav
    a:
    727
    at
    weblogic.jdbc.common.internal.ConnectionPool.createPool(ConnectionPool.jav
    a:
    709
    at
    com.thc.ids.inf.framework.opf.rdbms.datastore.ConnectionPoolCreator.create
    Co
    nne
    ctionPool(ConnectionPoolCreator.java:82)
    at
    com.thc.ids.inf.framework.opf.datastore.DataStoreRepository.createConnecti
    on
    Poo
    lIfNonExistent(DataStoreRepository.java:211)
    at
    com.thc.ids.inf.util.persistence.content.ConnectionPoolInitializer.createC
    on
    nec
    tionPoolIfNeeded(ConnectionPoolInitializer.java:48)
    at
    com.thc.ids.inf.services.business.crs.spi.oracle.OracleRetrievalProvider.c
    re
    ate
    ConnectionPoolIfNeeded(Unknown Source)
    at
    com.thc.ids.inf.services.business.crs.spi.oracle.OracleRetrievalProvider.g
    et
    Ima
    ge(Unknown Source)
    at
    com.thc.ids.inf.services.business.crs.ContentRetrievalService.getImage(Unk
    no
    wn
    Source)
    at java.lang.reflect.Method.invoke(Native Method)
    at
    com.thc.ids.inf.util.reflection.MethodDescription.invokeMethod(MethodDescr
    ip
    tio
    n.java:181)
    at
    com.thc.ids.inf.util.reflection.MethodInvocation.invoke(MethodInvocation.j
    av
    a:7
    9)
    at
    com.thc.ids.inf.framework.service.J2EE.ejb.ServiceBean.invoke(ServiceBean.
    ja
    va:
    186)
    at
    com.thc.ids.inf.framework.service.J2EE.ejb.ServiceBean_bjedmi_EOImpl.invok
    e(
    Ser
    viceBean_bjedmi_EOImpl.java:37)
    at
    com.thc.ids.inf.framework.service.J2EE.ejb.ServiceBean_bjedmi_EOImpl_WLSke
    l.
    inv
    oke(Unknown Source)
    atweblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298)
    at
    weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerRef.ja
    va
    :93
    at
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    Eduardo Rocha.
    [email protected]

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    https://forums.oracle.com/thread/2558027
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