I am reading some response from a device which is on network,and udp server is running on that, i am sending some command to it, and reading response from it, and on behalf of that response, i try to pop message through swing componet i.e,
If your code is as you wrote, there is no issue with that call. I might suggest looking at your threading model. Do you have a working thread or a thread pool that is doing asynchronous work that generates this dialog? If so, that may be where your problem lies.
What exactly do you mean "Hung up" GUI?
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