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Connection Pool Manager's error

 
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Hello,
I am new to entity beans. when I deployed an entity bean in websphre appliation server 5.1, it deployed successfully. But when I go to start the application it fails and suggest to check to log. I found this message from log. I think it is not taking jndi name provided. can anybody please tell me how to assign a jndi name to an entity bean deployed.

error is.....

J2CA0020E: The Connection Pool Manager could not allocate a Managed Connection: javax.resource.spi.ResourceAllocationException: Caught ResourceException thrown during creation of the ManagedConnection.at com.ibm.ejs.j2c.poolmanager.FreePool.createManagedConnectionWithMCWrapper(FreePool.java:1138)at com.ibm.ejs.j2c.poolmanager.FreePool.createOrWaitForConnection(FreePool.java:897)at com.ibm.ejs.j2c.poolmanager.PoolManager.reserve(PoolManager.java:1065)at com.ibm.ejs.j2c.ConnectionManager.allocateMCWrapper(ConnectionManager.java:560)at com.ibm.ejs.j2c.ConnectionManager.allocateConnection(ConnectionManager.java:374)at com.ibm.ejs.jms.JMSQueueConnectionFactoryHandle.createQueueConnection(JMSQueueConnectionFactoryHandle.java:80)at com.ibm.ejs.jms.listener.MDBListenerImpl.createResources(MDBListenerImpl.java:250)at com.ibm.ejs.jms.listener.MDBListenerImpl.internalStart(MDBListenerImpl.java:474)at com.ibm.ejs.jms.listener.MDBListenerImpl.restart(MDBListenerImpl.java:446)at com.ibm.ejs.jms.listener.MDBListenerImpl.alarm(MDBListenerImpl.java:718)at com.ibm.ejs.util.am._Alarm.run(_Alarm.java:80)at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:592).


Thanks
Mahesh Malviya.
 
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I believe this is done in the deployment descriptor
 
Mahesh Malviya
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But, what I left to make entry into the deployement descriptor. Please help me out. I am helpless.

Mahesh Malviya
 
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