Inspect SWT app at runtime?

Question

Is there any way to inspect (in a broad sense, to get any info) a SWT app without disassembling it (as it's packed as exe and I don't know how to extract it first)?

EDIT: turns out the app is a SWT one.

Answer 1

SwingExplorer looks promising (and free)

Answer 2

Ok, VisualVM gives a heap dump. That's already something.