A message queue provides asynchronous communication between your application components. This means that the sender and receiver of the message don't interact with each other directly and don't need to interact with the message queue at the same time.
The Java Message Service (JMS) framework is a messaging standard for Java application components. IntelliJ IDEA provides code completion and navigation for several JMS provider implementations:
When implementing the sender method, you can press Control+Space to complete available destinations and then hold Control while clicking it to navigate to the relevant declaration.
Click in the gutter where you implemented the receiver (listener) method to list all usages of the corresponding destination and navigate to any one of them.
Press Alt+Enter on a destination to inject a reference for it.