I finally managed to release the final version including quite some bugfixes.
Blackspirit Graphics might be interesting for those who want fast 2D graphics in Java but OpenGL is already too much.
Some core features are standard drawing operations (Image, Triangle, Line, Point), drawing on images the same way as drawing to screen, textured shapes, buffered images, reading screen buffer content to image and it uses JOGL. 
Development is still ongoing and there is more to come.
More about it on: http://www.blackspirit.ch/projects/bsgraphics_en.html