JSR 239 defines the Java programming language bindings for two APIs, OpenGL for Embedded Systems (OpenGL ES) and EGL. OpenGL ES is a standard API for 3D graphics, a subset of OpenGL, which is pervasive on desktop computers. EGL is a standard platform interface layer. Both OpenGL ES and EGL are developed by the Khronos Group (http://khronos.org/opengles/).
While JSR 184 (which is object oriented) requires high level functionality, OpenGL is a low level graphics library that is suited for accessing hardware accelerated 3D graphics. Explore the OpenGLESDemo sample project code.