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Configure an activation specification for the IBM MQ messaging provider

Configure a JMS activation specification to enable a message-driven bean (MDB) to communicate with the IBM MQ messaging provider.


View or change the configuration of an activation specification for use with IBM MQ

  1. In the navigation pane, click...

      Resources > JMS->Activation specifications

    A list of existing activation specifications, with a summary of their properties, is displayed in an Activation specification collection form.

  2. Select the Scope setting corresponding to the scope of the activation specifications to view or change.

  3. Select the name of the activation specification to view or change. Configuration details for the activation specification are displayed in an IBM MQ messaging provider activation specification settings form.

  4. Under General Properties make modifications as necessary

    There are four IBM MQ connection properties used to configure the IBM MQ resource adapter used by the IBM MQ messaging provider. These properties affect the connection pool used by activation specifications:

    • maxConnections
    • connectionConcurrency (WAS 7 nodes only. No effect for WAS v8 or later nodes.)
    • reconnectionRetryCount
    • reconnectionRetryInterval

    For more information about these four properties, and how to configure them, see Resource adapter properties.

  5. Click Apply to save the configuration.

  6. Optional: Click Advanced properties to display or change the list of advanced properties of our activation specification.

  7. Optional: Click Broker properties to display or change the list of broker properties of our activation specification.

  8. Optional: Click Custom properties to display or change the list of custom properties of our activation specification. For example, we would use this option to set the custom property WAS_EndpointInitialState for an activation specification. WAS_EndpointInitialState determines whether or not message consumption begins from the JMS destination as soon as the activation specification is used for a message-driven bean to connect with the destination.

  9. Optional: Click Client transport properties to display or change the list of client transport properties of our activation specification. This link is only present on the explicitly-defined variation of this panel, where you enter all information required to connect to IBM MQ. This link does not appear for the CCDT-based variation.

  10. Click OK.

  11. Save changes to the master configuration.

  12. If we use activation specifications with IBM MQ message-driven beans (MDBs) on the z/OS platform, enable the control region adjunct (CRA) process of the application server. Either select Enable JCA based inbound message delivery on the JMS provider settings panel, or by use the manageWMQ command to include starting the CRA as part of the process for starting an application server.

  13. To have the changed configuration take effect, stop then restart the application server.


  • Create an activation specification for the IBM MQ messaging provider
  • Configure custom properties for IBM MQ messaging provider JMS resources
  • Migrate a listener port to an activation specification for use with the IBM MQ messaging provider
  • (ZOS) Classifying z/OS workload
  • (ZOS) manageWMQ command
  • createWMQActivationSpec command
  • deleteWMQActivationSpec command
  • listWMQActivationSpecs command
  • modifyWMQActivationSpec command
  • showWMQActivationSpec command
  • IBM MQ messaging provider activation specification advanced properties
  • IBM MQ messaging provider activation specification broker properties
  • IBM MQ messaging provider activation specification client transport properties
  • IBM MQ messaging provider activation specification settings