* probability.
   */
  static BigInteger randomNonZeroBigInteger(int numBits) {
    BigInteger result = randomPositiveBigInteger(numBits);
    return RANDOM_SOURCE.nextBoolean() ? result : result.negate();
  }

  /**
   * Chooses a number in (-2^numBits, 2^numBits) at random, with density concentrated in numbers of
   * lower magnitude.
   */
  static BigInteger randomBigInteger(int numBits) {

 * or method references instead of classes, leaving your code easier to migrate in the future.
 *
 * <p>The {@link Predicates} class provides common predicates and related utilities.
 *
 * <p>See the Guava User Guide article on <a
 * href="https://github.com/google/guava/wiki/FunctionalExplained">the use of {@code Predicate}</a>.
 *
 * @author Kevin Bourrillion
 * @since 2.0
 */

     */
    LEAST_LOADED,

    /**
     * Weighted random selection based on channel scores
     */
    WEIGHTED_RANDOM,

    /**
     * Affinity-based selection for related operations
     */
    AFFINITY_BASED,

    /**
     * Adaptive selection based on operation type and performance
     */
    ADAPTIVE

/**
 * Exception thrown when dictionary operations encounter errors.
 * This exception is typically used for issues during dictionary file
 * reading, writing, parsing, or other dictionary-related operations.
 */
public class DictionaryException extends FessSystemException {

    /** Serial version UID for serialization. */
    private static final long serialVersionUID = 1L;

    /**

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.exception;

/**
 * This exception is thrown when a storage-related error occurs.
 * It can be used to wrap underlying storage exceptions, providing a
 * consistent error handling mechanism for storage operations.
 */
public class StorageException extends FessSystemException {

package org.codelibs.fess.app.web.cache;

import java.util.HashMap;
import java.util.Map;

import org.lastaflute.web.validation.Required;

import jakarta.validation.constraints.Size;

/**
 * Form class for cache-related operations.
 * Contains parameters for document caching and error page display.
 */
public class CacheForm {

    /** Document ID for cache operations. */
    @Required
    @Size(max = 100)

 *
 * This exception is typically thrown when query parsing, serialization,
 * or processing fails during search operations. It extends FessSystemException
 * to provide specific handling for search query-related errors.
 */
public class SearchQueryException extends FessSystemException {

    /** Serial version UID for serialization. */
    private static final long serialVersionUID = 1L;

    /**

 * governing permissions and limitations under the License.
 */
package org.codelibs.core.convert;

import java.math.BigInteger;

/**
 * Utility class for conversions related to {@link BigInteger}.
 *
 * @author higa
 */
public abstract class BigIntegerConversionUtil {

    /**
     * Do not instantiate.
     */
    protected BigIntegerConversionUtil() {
    }

    /**

import jakarta.validation.constraints.Pattern;

/**
 * Form for uploading design files to customize the appearance of the Fess search interface.
 * This form is used in the admin interface to upload CSS, JSP, and other design-related files
 * that customize the look and feel of the search application.
 */
public class UploadForm {

    /**
     * The multipart file containing design resources to be uploaded.

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.curl;

/**
 * Custom exception class for handling errors related to Curl operations.
 * This class extends {@link RuntimeException} and provides constructors
 * to create an exception instance with a message and an optional cause.
 *
 * <p>Usage examples:</p>
 * <pre>