zSaver: Open Source Window Properties Persistence Solution
I would like to share news about zSaver with you: a small Java package attachable to any project. It allows a project to save a size, a location and any custom data of a project's window in an auto-created property file.
Then, next time the window will open in saved size/position and the custom data will be restored too.
zSaver is freeware, distributed under LGPL.