//load JOCL and init table
doPrivileged(new PrivilegedAction<Object>() {
@Override
public Object run() {
NativeLibrary libOpenCL = JOCLJNILibLoader.loadOpenCL();
if(libOpenCL == null) {
throw new JogampRuntimeException("OpenCL library not found.");
}
//eagerly init function to query extension addresses (used in reset())