What's the meaning of timeout of an asynchronous operation

[jie tang]

Hi,

I don't understand the meaning of timeout of an asynchronous operation.
Servlet 3.0 says "The time out applies to the AsyncContext once the
container-initiated dispatch during which one of the
ServletRequest.startAsync methods was called has returned to the container."
But when is the completion of the asynchronous operation? The invocation of
AsyncContext.complete or AsyncContext.dispatch? Or something else?

Thanks.
Jie