Graphics Intensive Application in Java

Question

I'm making a particle engine in Java, and right now I'm using a subclass of java.awt.canvas. I'm using canvas.getBufferStrategy().getDrawGraphics() and then, when I'm done, using canvas.getBufferStrategy().Show().

Now that I've got some particles (graphics.fillOval(...)) - I need to do some additive blending! Problem is, I can't find additive blending anywhere (googled). What I came up with from a google search is open gl through jogl. jogl would be a great move from graphics, since I have change the graphics color thousands of times a tick, and I can't find additive blending, but I'm just unsure as to whether or not jogl is standard and works on all (or most) computers.

Any thoughts or suggestions are welcome.