@Override
    public void glStencilFuncSeparate(final int face, final int func, final int ref, final int mask) {
        GL20.glStencilFuncSeparate(face, func, ref, mask);
    }
The LWJGL implementation of interfaces {@link GL}, {@link GL2}, {@link GL3}, {@link GL4}.
jme3-lwjgl3/src/main/java/com/jme3/renderer/lwjgl/LwjglGL.java