Netbeans Platform : WIndows Mode

https://ui.netbeans.org/docs/ui/ws/ws_spec-netbeans_ide.html
https://platform.netbeans.org/tutorials/nbm-quick-start.html#window
http://wiki.netbeans.org/DevFaqWindowsMode
http://wiki.netbeans.org/DevFaqWindowsTopComponent
http://wiki.netbeans.org/DevFaqWindowsInternals
http://bits.netbeans.org/dev/javadoc/org-openide-windows/org/openide/windows/doc-files/api.html#find
http://bits.netbeans.org/dev/javadoc/org-openide-windows/org/openide/windows/Mode.html

http://netbeans.dzone.com/news/secrets-netbeans-window-system

https://blogs.oracle.com/geertjan/entry/window_system_in_7_1

https://java.net/projects/nb-api-samples/sources/api-samples/show/versions/8.0/tutorials/WordProcessor