Thanks a lot for your answer.
My problem is those method does not exist on FrameBuffer.
buffer = new FrameBuffer(1024, 768, FrameBuffer.SAMPLINGMODE_HARDWARE_ONLY);
buffer.disableRenderer(IRenderer.RENDERER_SOFTWARE);
buffer.enableRenderer(IRenderer.RENDERER_OPENGL);
In first line of above code,I cant pass third parameter and on second and third line FreameBuffer does not has disableRenderer and enableRenderer methods.
Also FrameBuffer does not has Update and displayGLOnly methods.
It's mean JPCT-AE Does not support these methods?