private boolean checkFileIdentifier(byte[] b) {
        boolean check = true;
        for (int i = 0; i < 12; i++) {
            if (b[i] != fileIdentifier[i]) {
                check = false;
            }
        }
        return check;
    }
Checks the file id
@param b
@return
jme3-core/src/plugins/java/com/jme3/texture/plugins/ktx/KTXLoader.java