17.1. Overview and Related Method
If a JMS provider detects a serious problem with a Connection object, it informs the Connection object's ExceptionListener, if one has been registered. It does this by calling the listener's onException method, passing it a JMSException argument describing the problem.
An exception listener allows a client to be notified of a problem asynchronously. Some connections only consume messages, so they would have no other way to learn that their connection has failed.
A JMS provider should attempt to resolve connection problems itself before it notifies the client of them.
The related method is Connection.setExceptionListener.
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