This is using JavaTest 2.0. Demo available on request.

I start JavaTest, it shows briefly at (0,0) before being show
in the position I place it (centered on screen.) See Bug 4094621.

Once it is showing correctly, I use the toolbar to switch to a
different panel. This causes child components to be created and added
to the panel below the toolbar.

In the past, this caused the whole frame to move up a few pixels,
about half and inch or so. (Bug 4080504) Now the behavior has changed.
The whole frame moves to 0,0 when these child components are added.

This erroneous behavior seems new in 1.1.5.