@Override
    public void glUniform4f(final int location, final float v0, final float v1, final float v2, final float v3) {
        GL20.glUniform4f(location, v0, v1, v2, v3);
    }
The LWJGL implementation of interfaces {@link GL}, {@link GL2}, {@link GL3}, {@link GL4}.
jme3-lwjgl3/src/main/java/com/jme3/renderer/lwjgl/LwjglGL.java