Standard fault missingReply is not thrown

As BPEL specification is saying, missingReply is thrown when an inbound message activity has been executed, and the process instance or scope instance reaches the end of its execution without a corresponding <reply> activity having been executed.
But when I have process:
receive
assign
– there should be a reply which is missing
I won't receive anything, SoapUI will timeout and on the server side, It's doing nothing If It reach end of process and then will throw java.util.concurrent.TimeoutException, because It's waiting for response.