* <ul>
 * <li>Web crawling - crawls web sites and web content</li>
 * <li>File system crawling - crawls file systems and documents</li>
 * <li>Data store crawling - crawls databases and other data sources</li>
 * <li>Combined crawling - runs multiple crawling types simultaneously</li>
 * </ul>
 *
 * <p>Command line usage:
 * <pre>
 * java org.codelibs.fess.exec.Crawler [options...]

                // Use AES-GCM - nonce is 16 bytes
                final Cipher cipher = createGCMCipher(false, nonce);
                cipher.updateAAD(associatedData);

                // Combine ciphertext and auth tag for decryption
                final byte[] input = new byte[ciphertext.length + authTag.length];
                System.arraycopy(ciphertext, 0, input, 0, ciphertext.length);

        byte[] targetNameData = "TEST".getBytes();
        byte[] avTargetNameData = createAvPairData(AvPair.MsvAvTargetName, targetNameData);

        byte[] eolData = createEolData();

        // Combine all data
        int totalLength = avFlagsData.length + avTimestampData.length + avTargetNameData.length + eolData.length;
        byte[] fullData = new byte[totalLength];
        int pos = 0;

        // Simple KDF implementation (should be replaced with proper KDF like HKDF)
        // This is a placeholder - real implementation should use proper KDF
        byte[] derived = new byte[length];

        // Combine inputs
        byte[] labelBytes = label.getBytes(java.nio.charset.StandardCharsets.UTF_8);
        byte[] input = new byte[baseKey.length + labelBytes.length + (context != null ? context.length : 0)];

        int pos = 0;

        terms of a Secondary License.

1.6. "Executable Form"
    means any form of the work other than Source Code Form.

1.7. "Larger Work"
    means a work that combines Covered Software with other material, in
    a separate file or files, that is not Covered Software.

1.8. "License"
    means this document.

1.9. "Licensable"

    checkArgument(min <= max, "min (%s) must be less than or equal to max (%s)", min, max);
    return Math.min(Math.max(value, min), max);
  }

  /**
   * Returns the values from each provided array combined into a single array. For example, {@code
   * concat(new int[] {a, b}, new int[] {}, new int[] {c}} returns the array {@code {a, b, c}}.
   *
   * @param arrays zero or more {@code int} arrays

    ImmutableSetMultimap.Builder<String, Integer> zat =
        ImmutableSetMultimap.<String, Integer>builder().put("a", 3).put("c", 4);
    ImmutableSetMultimap<String, Integer> multimap = zis.combine(zat).build();
    assertThat(multimap.keySet()).containsExactly("a", "b", "c").inOrder();
    assertThat(multimap.values()).containsExactly(1, 3, 2, 4).inOrder();
    assertThat(multimap.get("a")).containsExactly(1, 3).inOrder();

    UNSATISFIED_AND_INTERRUPTED_BEFORE_WAITING;

    @Override
    public String toString() {
      return CaseFormat.UPPER_UNDERSCORE.to(CaseFormat.UPPER_CAMEL, name());
    }
  }

  /** Timeout values to combine with each {@link Scenario}. */
  private enum Timeout {
    MIN(Long.MIN_VALUE, "-oo"),
    MINUS_SMALL(-SMALL_TIMEOUT_MILLIS, "-" + SMALL_TIMEOUT_MILLIS + "ms"),
    ZERO(0L, "0ms"),

          <configuration>
            <source>1.8</source>
            <target>1.8</target>
            <encoding>UTF-8</encoding>
            <parameters>true</parameters>
            <compilerArgs combine.children="override">
              <!-- https://errorprone.info/docs/installation#maven -->
              <arg>-XDcompilePolicy=simple</arg>
              <arg>--should-stop=ifError=FLOW</arg>

          <configuration>
            <source>1.8</source>
            <target>1.8</target>
            <encoding>UTF-8</encoding>
            <parameters>true</parameters>
            <compilerArgs combine.children="override">
              <!-- https://errorprone.info/docs/installation#maven -->
              <arg>-XDcompilePolicy=simple</arg>
              <arg>--should-stop=ifError=FLOW</arg>