@Override
        public boolean accept(final Field field, final int value) {
            return value < 0; // Currently, all OpenCL errors have negative values.
        }
Maps OpenCL error token values to their String representations. 
        Taken directly from org.lwjgl.opencl.Util
jme3-lwjgl/src/main/java/com/jme3/opencl/lwjgl/Utils.java