*
   * @throws IllegalArgumentException if {@code x <= 0}
   * @throws ArithmeticException if {@code mode} is {@link RoundingMode#UNNECESSARY} and {@code x}
   *     is not a power of two
   */
  @SuppressWarnings("fallthrough")
  // TODO(kevinb): remove after this warning is disabled globally
  public static int log2(BigInteger x, RoundingMode mode) {
    checkPositive("x", checkNotNull(x));

            <configuration>
              <module>com.google.common.GuavaTests</module>
              <includes>**/GwtTestSuite.java</includes>
              <logLevel>${gwt.logLevel}</logLevel>
              <mode>htmlunit</mode>
              <htmlunit>FF38</htmlunit>
              <productionMode>true</productionMode>
              <!-- Fix OutOfMemoryError under Travis. -->

    for (RoundingMode mode : ALL_ROUNDING_MODES) {
      assertThrows(IllegalArgumentException.class, () -> BigIntegerMath.log2(ZERO, mode));
    }
  }

  public void testLog2NegativeAlwaysThrows() {
    for (RoundingMode mode : ALL_ROUNDING_MODES) {
      assertThrows(
          IllegalArgumentException.class, () -> BigIntegerMath.log2(BigInteger.valueOf(-1), mode));
    }
  }

    //                                                                           =========
    /**
     * Verifies that the CRUD mode matches the expected mode.
     *
     * @param crudMode the actual CRUD mode
     * @param expectedMode the expected CRUD mode
     */
    protected void verifyCrudMode(final int crudMode, final int expectedMode) {
        if (crudMode != expectedMode) {

  // mode.
  static int listListIteratorTesterNumIterations() {
    // TODO(hhchan): It's 4 in java.  Figure out why even 3 is too slow in prod mode.
    return 2;
  }

  // Use fewer steps in the IteratorTester in CollectionIteratorTester because it's slow in prod
  // mode.
  static int collectionIteratorTesterNumIterations() {
    return 3;
  }

        }
    }

    /**
     * Moves to a specific page.
     * @param form The search form.
     * @param move The number of pages to move.
     * @return The HTML response.
     */
    protected HtmlResponse doMove(final SearchForm form, final int move) {
        int start = fessConfig.getPagingSearchPageStartAsInteger();
        if (form.pn != null) {
            int pageNumber = form.pn;

        assertEquals("******@****.***", specialMailEnv.getMailReturnPath());
    }

    // Test deploy mode variations
    public void xtest_deployModeVariations() {
        String[] deployModes = { "hot", "cool", "warm" };

        for (String mode : deployModes) {
            FessEnv.SimpleImpl deployEnv = new FessEnv.SimpleImpl() {
                protected Properties prepareProperties() {

    //                                                                        ============
    /**
     * Verify that the CRUD mode matches the expected mode.
     * Throws validation error if modes don't match.
     *
     * @param crudMode The current CRUD mode
     * @param expectedMode The expected CRUD mode
     * @param dictId The dictionary ID for error context
     */

    //                                                                        ============
    /**
     * Verifies that the CRUD mode matches the expected mode.
     *
     * @param crudMode actual CRUD mode
     * @param expectedMode expected CRUD mode
     */
    protected void verifyCrudMode(final int crudMode, final int expectedMode) {
        if (crudMode != expectedMode) {

      for (RoundingMode mode : ALL_SAFE_ROUNDING_MODES) {
        BigDecimal expected = new BigDecimal(d).setScale(0, mode);
        boolean isInBounds =
            expected.compareTo(MAX_INT_AS_BIG_DECIMAL) <= 0
                & expected.compareTo(MIN_INT_AS_BIG_DECIMAL) >= 0;

        try {
          assertEquals(
              "Rounding " + d + " with mode " + mode,
              expected.intValue(),