public static byte[] safeCopy(byte[] source, int offset, int length) {
        if (length < 0 || source.length < offset + length) {
            return null;
        }
        byte[] copy = new byte[length];
        System.arraycopy(source, offset, copy, 0, length);
        return copy;
    }
Returns a copy of the source byte array, starting at offset for the given length.  If the
offset + length is out of bounds for the array, returns null.
inlong-agent/agent-common/src/main/java/org/apache/inlong/agent/utils/ByteUtil.java