// shouldn't happen if alloc_hint is correct or greater
                final byte[] tmp = new byte[off + stub_frag_len];
                System.arraycopy(in, 0, tmp, 0, off);
                in = tmp;
            }
            System.arraycopy(fragBytes, 24, in, off, stub_frag_len);
            off += stub_frag_len;
        }
        return in;
    }

    /**
     * @param fbuf

        String expectedDescr = "WrLehDO\u0000B16BBDz\u0000";
        byte[] expectedDescrBytes = expectedDescr.getBytes("ASCII");
        byte[] actualDescrBytes = new byte[expectedDescrBytes.length];
        System.arraycopy(dst, 2, actualDescrBytes, 0, expectedDescrBytes.length);
        assertArrayEquals(expectedDescrBytes, actualDescrBytes);

        // Verify level (0x0001)
        int descrEnd = 2 + expectedDescrBytes.length;

            byte[] stringBytes = testString.getBytes(StandardCharsets.UTF_16LE);
            byte[] bufferWithTermination = new byte[stringBytes.length + 2]; // +2 for null termination
            System.arraycopy(stringBytes, 0, bufferWithTermination, 0, stringBytes.length);
            bufferWithTermination[stringBytes.length] = 0x00;
            bufferWithTermination[stringBytes.length + 1] = 0x00;

            // When

    }

    final void addAll(@Nullable Object[] elements, int n) {
      checkElementsNotNull(elements, n);
      ensureRoomFor(n);
      /*
       * The following call is not statically checked, since arraycopy accepts plain Object for its
       * parameters. If it were statically checked, the checker would still be OK with it, since
       * we're copying into a `contents` array whose type allows it to contain nulls. Still, it's

   *
   * - https://github.com/jspecify/jdk/commit/71d826792b8c7ef95d492c50a274deab938f2552
   */
  /*
   * TODO(cpovirk): Is the unchecked cast avoidable? Would System.arraycopy be similarly fast (if
   * likewise not type-checked)? Could our single caller do something different?
   */
  @SuppressWarnings({"nullness", "unchecked"})

        if (this.dataLength + this.outputBufferOffset > this.outputBuffer.length) {
            throw new SMBProtocolDecodingException("Buffer to small for read response");
        }
        System.arraycopy(buffer, dataStart, this.outputBuffer, this.outputBufferOffset, this.dataLength);
        bufferIndex = Math.max(bufferIndex, dataStart + this.dataLength);
        return bufferIndex - start;
    }

    /**

            }
            System.arraycopy(Strings.getUNIBytes(str), 0, dst, dstIndex, str.length() * 2);
            dstIndex += str.length() * 2;
            dst[dstIndex] = (byte) '\0';
            dstIndex++;
            dst[dstIndex++] = (byte) '\0';
        } else {
            final byte[] b = Strings.getOEMBytes(str, this.getConfig());
            System.arraycopy(b, 0, dst, dstIndex, b.length);

        final int start = dstIndex;

        while (pad-- > 0) {
            dst[dstIndex] = (byte) 0xEE;
            dstIndex++;
        }
        System.arraycopy(b, off, dst, dstIndex, dataLength);
        dstIndex += dataLength;

        return dstIndex - start;
    }

    @Override
    int readParameterWordsWireFormat(final byte[] buffer, final int bufferIndex) {

                        if (remaining <= 0) {
                            return -1;
                        }
                        int toRead = Math.min(buffer.length, remaining);
                        System.arraycopy(includeContent, index[0], buffer, 0, toRead);
                        index[0] += toRead;
                        return toRead;
                    });

                    throw new PACDecodingException("Unaligned buffer " + bufferType);
                }

                byte[] bufferData = new byte[bufferSize];
                System.arraycopy(data, (int) bufferOffset, bufferData, 0, bufferSize);

                switch (bufferType) {
                case PacConstants.LOGON_INFO:
                    // PAC Credential Information