Closing JDialog - Process keeps running in the background

Hi Sirs,
I noticed that every time I close a JDialog, there is a process that keeps running in the background.
I use JDialog for specific window forms that need the attribute modal to be set to true, as I can't find it in JFrame.
And on JDialog this constant EXIT_ON_CLOSE is not supported.
How can I clear the memory after closing a JDialog? Currently, the constant used is DISPOSE_ON_CLOSE

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there is a process that keeps running in the background.

 . . . what process is that?
Omer-PitouAuthor Commented:
This is what is mentioned on the Netbeans status bar, every time I close that window, and reopen the number keeps going up.CaptureProcess.PNG
Run your app outside Netbeans

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