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JSR 239 Change 2

In addition to the changes from the first maintenance review an additional rendering target is needed to support use of OpenGL ES on the Personal Basis Profile (PBP). Xlets typically do not have access to Frames on the display. The Container object returned from XletContext.getContainer must be supported as a rendering target. This allows the Xlet to use OpenGL ES directly with the Container. Applications started via main() use a java.awt.Frame to render OpenGL ES graphics as provided in the first maintenance review.