for (ImmutableList<Class<?>> sig : allSignatures(boolean.class)) {
      Method checkArgumentMethod =
          Preconditions.class.getMethod("checkArgument", sig.toArray(new Class<?>[] {}));
      checkArgumentMethod.invoke(null /* static method */, getParametersForSignature(true, sig));

      Object[] failingParams = getParametersForSignature(false, sig);
      InvocationTargetException ite =

    for (ImmutableList<Class<?>> sig : allSignatures(boolean.class)) {
      Method checkArgumentMethod =
          Preconditions.class.getMethod("checkArgument", sig.toArray(new Class<?>[] {}));
      checkArgumentMethod.invoke(null /* static method */, getParametersForSignature(true, sig));

      Object[] failingParams = getParametersForSignature(false, sig);
      InvocationTargetException ite =

        int flags = oldFlags | ServerMessageBlock2.SMB2_FLAGS_SIGNED;
        SMBUtil.writeInt4(flags, data, offset + 16);

        this.digest.update(data, offset, length);

        byte[] sig = this.digest.doFinal();
        System.arraycopy(sig, 0, data, offset + SIGNATURE_OFFSET, SIGNATURE_LENGTH);
    }


    /**
     * 
     * {@inheritDoc}
     *