docs: public static void sanityCheck(int length, byte[] frame, int offset) throws JMFMessageCorruptionException {
      if (length < 0 || offset + 4 + length > frame.length) {
        JMFMessageCorruptionException jmce =  new JMFMessageCorruptionException(
            "Bad length: " + HexUtil.toString(new int[] { length }) + " at offset " + offset);
        FFDCFilter.processException(jmce, "com.ibm.ws.sib.mfp.jmf.impl.JSListCoder.sanityCheck", "160", Integer.valueOf(length),
            new Object[] { MfpConstants.DM_BUFFER, frame, Integer.valueOf(0), Integer.valueOf(frame.length) });
        throw jmce;
      }
    }