* element. There are five new bulk-modification operations, for example {@link #add(Object, int)},
 * to add or remove multiple occurrences of an element at once, or to set the count of an element to
 * a specific value. These modification operations are optional, but implementations which support
 * the standard collection operations {@link #add(Object)} or {@link #remove(Object)} are encouraged

     */
    ROUND_ROBIN,

    /**
     * Select the least busy channel based on pending operations
     */
    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

                    }
                });

                startLatch.countDown();
                executor.shutdown();
                assertTrue("Concurrent operations timed out", executor.awaitTermination(10, TimeUnit.SECONDS));

                // Verify both operations completed successfully
                assertEquals(10, searchCount.get());
                assertEquals(10, registerCount.get());

            } finally {

 * <ul>
 *   <li>Debugging and troubleshooting of request flows</li>
 *   <li>Audit logging of operations</li>
 *   <li>Performance monitoring of nested operations</li>
 * </ul>
 *
 * <p>This interface is designed to be extended by specific request types that handle
 * different Maven operations. All implementations must be immutable to ensure thread safety
 * and predictable behavior in concurrent environments.
 *

  Read more about distributed MinIO [here](https://docs.min.io/community/minio-object-store/operations/deployments/baremetal-deploy-minio-as-a-container.html).

### Explore Further

* [Overview of Docker Compose](https://docs.docker.com/compose/overview/)
* [MinIO Docker Quickstart Guide](https://docs.min.io/community/minio-object-store/operations/deployments/baremetal-deploy-minio-as-a-container.html)

 * views are modifiable.
 *
 * <p>This class is not threadsafe when any concurrent operations update the multimap. Concurrent
 * read operations will work correctly if the last write <i>happens-before</i> any reads. To allow
 * concurrent update operations, wrap your multimap with a call to {@link
 * Multimaps#synchronizedSetMultimap}.
 *

        // Make channel2 have pending operations
        channel2.addPendingOperation(mockMessage);

        when(mockChannelManager.getHealthyChannels()).thenReturn(Arrays.asList(channel1, channel2));

        ChannelInfo selected = loadBalancer.selectChannel(queryInfo);
        // Should prefer less loaded channel for metadata operations
        assertEquals(channel1, selected);
    }

    @Test

 */
package org.codelibs.fess.auth.chain;

import org.codelibs.fess.opensearch.user.exentity.User;

/**
 * Interface for authentication chain operations.
 * Provides methods for user management and authentication operations.
 */
public interface AuthenticationChain {

    /**
     * Updates an existing user in the authentication chain.
     * @param user The user to update.
     */

 */
package org.codelibs.fess.dict;

import org.codelibs.fess.exception.FessSystemException;

/**
 * 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. */

   * instance, so it can be invoked again to create multiple independent maps.
   *
   * <p>The bulk operations {@code putAll}, {@code equals}, and {@code clear} are not guaranteed to
   * be performed atomically on the returned map. Additionally, {@code size} and {@code
   * containsValue} are implemented as bulk read operations, and thus may fail to observe concurrent
   * writes.
   *