Java SE (Java Platform, Standard Edition)

Hi,

I am developing some kind of library, and I would like to close all open windows, dialogs, tooltips in the error case.
The problem is I don't have control about the windows currently open, many are instantiated by plug-ins.

Is there a way to get a list of all windows? This way I could go throw the list and simply call dispose() on all.

Thank you in advance, Clemens