final int len = str.length();
        int ch, size = 0;
        byte[] dst;

        for (int i = 0; i < len; i++) {
            ch = str.charAt(i);
            size += ch > 0x07F ? ch > 0x7FF ? 3 : 2 : 1;
        }
        dst = new byte[size];
        writeShort(size);
        Encdec.enc_utf8(str, dst, 0, size);
        write(dst, 0, size);
    }

            assertEquals((byte) 0x2F, ServerMessageBlock.SMB_COM_WRITE_ANDX);
            assertEquals((byte) 0x32, ServerMessageBlock.SMB_COM_TRANSACTION2);
            assertEquals((byte) 0x34, ServerMessageBlock.SMB_COM_FIND_CLOSE2);
            assertEquals((byte) 0x71, ServerMessageBlock.SMB_COM_TREE_DISCONNECT);
            assertEquals((byte) 0x72, ServerMessageBlock.SMB_COM_NEGOTIATE);

     */
    public static class SamrEnumerateAliasesInDomain extends DcerpcMessage {

        @Override
        public int getOpnum() {
            return 0x0f;
        }

        /** The return value of the operation */
        public int retval;
        /** The handle to the domain */
        public rpc.policy_handle domain_handle;

     */
    public static class SamrEnumerateAliasesInDomain extends DcerpcMessage {

        @Override
        public int getOpnum() {
            return 0x0f;
        }

        /** The return value of the operation */
        public int retval;
        /** The handle to the domain */
        public rpc.policy_handle domain_handle;

    /**
     * RPC message for enumerating all shares on a server.
     */
    public static class ShareEnumAll extends DcerpcMessage {

        @Override
        public int getOpnum() {
            return 0x0f;
        }

        /**
         * The return value of the operation.
         */
        public int retval;
        /**
         * The name of the server.
         */

     */
    public static void appendHex(final StringBuilder buf, final int i) {
        buf.append(Integer.toHexString(i >> 24 & 0xff));
        buf.append(Integer.toHexString(i >> 16 & 0xff));
        buf.append(Integer.toHexString(i >> 8 & 0xff));
        buf.append(Integer.toHexString(i & 0xff));
    }

    /**
     * Converts an underscore-separated string to camel case.
     * <p>
     * Usage example:

    }

    /**
     * LSA lookup SIDs message.
     */
    public static class LsarLookupSids extends DcerpcMessage {

        @Override
        public int getOpnum() {
            return 0x0f;
        }

        /** Return value from the RPC call. */
        public int retval;
        /** Policy handle for the LSA operation. */
        public rpc.policy_handle handle;

005B..0060    ; disallowed_STD3_valid                  # 1.1  LEFT SQUARE BRACKET..GRAVE ACCENT
0061..007A    ; valid                                  # 1.1  LATIN SMALL LETTER A..LATIN SMALL LETTER Z
007B..007F    ; disallowed_STD3_valid                  # 1.1  LEFT CURLY BRACKET..<control-007F>
0080..009F    ; disallowed                             # 1.1  <control-0080>..<control-009F>
00A0          ; disallowed_STD3_mapped ; 0020          # 1.1  NO-BREAK SPACE

	//TODO LDTRSB -0x75(R9), R13               // 2db99838
	//TODO LDTRSH 0xef(R3), LR                 // 7ef8ce78
	//TODO LDTRSH 0x96(R19), R24               // 786a8978
	//TODO LDTRSW 0x1e(LR), R5                 // c5eb81b8
	//TODO LDUR 0xbf(R13), R1                  // a1f14bb8
	//TODO LDUR -0x3c(R22), R3                 // c3425cf8
	//TODO LDURB -0xff(R17), R14               // 2e125038

   * of reads and delaying a lock acquisition until the threshold is crossed or a mutation occurs.
   *
   * <p>This must be a (2^n)-1 as it is used as a mask.
   */
  static final int DRAIN_THRESHOLD = 0x3F;

  /**
   * Maximum number of entries to be drained in a single cleanup run. This applies independently to
   * the cleanup queue and both reference queues.
   */
  // TODO(fry): empirically optimize this