JMS synchronous communication

In the following this, there is code for a basic JMS synchronous receiver.

The question I have is this: When a message is delive开发者_Go百科red to the queue, because it is synchronous, it will automatically be available via the receiver.receive method. Is this correct?

If this is so, then after msg1 arrives on queue, while we are still processing receiver.receive(). what happens if msg2 arrives on queue.

since the call receiver.receive() has not returned, will it be able to still receive the message # 2?

msg2 will remain on the queue until another consumer calls receive().