// Test integer conversion
        char[] dst1 = new char[8];
        Hexdump.toHexChars(0x1234ABCD, dst1, 0, 8);
        assertEquals("1234ABCD", new String(dst1));

        // Test with smaller size
        char[] dst2 = new char[4];
        Hexdump.toHexChars(0xABCD, dst2, 0, 4);
        assertEquals("ABCD", new String(dst2));

        // Test with offset
        char[] dst3 = new char[10];

            buffer[i] = (short) 0;
        }
    }

    @Override
    public String toString() {
        final int len = length / 2 - (zterm ? 1 : 0);
        final char[] ca = new char[len];
        for (int i = 0; i < len; i++) {
            ca[i] = (char) buffer[i];
        }
        return new String(ca, 0, len);
    }

    @Deprecated
    public static final char SET_SYSTEM_PROPERTY = SET_USER_PROPERTY;

    public static final char OFFLINE = 'o';

    public static final char QUIET = 'q';

    public static final char VERBOSE = 'X';

    public static final char ERRORS = 'e';

    public static final char HELP = 'h';

    public static final char VERSION = 'v';

    public static final char SHOW_VERSION = 'V';

    private final BytesRef scratchBytes = new BytesRef();

    private final CharsRef scratchChars = new CharsRef();

    private int longestMatchEndOffset;

    private int ch;

    private final char[] readBuffer;

    private int readBufferIndex;

    private int readBufferLen;

    StringBuilder block;

    int blkStart;

    int nextBlkStart;

    private int finalOffset;

  @Override
  Hasher putBoolean(boolean b);

  @CanIgnoreReturnValue
  @Override
  Hasher putChar(char c);

  /**
   * Equivalent to processing each {@code char} value in the {@code CharSequence}, in order. In
   * other words, no character encoding is performed; the low byte and high byte of each {@code
   * char} are hashed directly (in that order). The input must not be updated while this method is
   * in progress.
   *

            break;
        default:
            break;
        }
        return OptionalEntity.empty();
    }

    /**
     * Create a char mapping item.
     * @param form The create form.
     * @param hook The error hook.
     * @return An optional entity of a char mapping item.
     */
    protected OptionalEntity<CharMappingItem> createCharMappingItem(final CreateForm form, final VaErrorHook hook) {
        try {

void TF_AbstractOpSetOpType(TF_AbstractOp* op, const char* const op_type,
                            TF_Status* s);
// `op_name` must outlive `op`.
void TF_AbstractOpSetOpName(TF_AbstractOp* op, const char* const op_name,
                            TF_Status* s);
// `attr_name` must outlive `op`.
void TF_AbstractOpSetAttrType(TF_AbstractOp* op, const char* const attr_name,

        hashFunction.newHasher().putUnencodedChars(string).hash());
  }

  static char randomLowSurrogate(Random random) {
    return (char)
        (Character.MIN_LOW_SURROGATE
            + random.nextInt(Character.MAX_LOW_SURROGATE - Character.MIN_LOW_SURROGATE + 1));
  }

  static char randomHighSurrogate(Random random) {
    return (char)
        (Character.MIN_HIGH_SURROGATE

   */
  AppendableWriter(Appendable target) {
    this.target = checkNotNull(target);
  }

  /*
   * Abstract methods from Writer
   */

  @Override
  public void write(char[] cbuf, int off, int len) throws IOException {
    checkNotClosed();
    // It turns out that creating a new String is usually as fast, or faster
    // than wrapping cbuf in a light-weight CharSequence.

    this.source = factory.createSource(data);
  }

  public void testOpenStream() throws IOException {
    Reader reader = source.openStream();

    StringWriter writer = new StringWriter();
    char[] buf = new char[64];
    int read;
    while ((read = reader.read(buf)) != -1) {
      writer.write(buf, 0, read);
    }
    reader.close();
    writer.close();

    assertExpectedString(writer.toString());