/**
     * Executes the log purging job.
     * Performs the following cleanup operations:
     * - Purges old crawling sessions
     * - Purges search logs older than configured days
     * - Purges job logs older than configured days
     * - Purges user info logs older than configured days
     * - Updates job log status
     *
     * @return a string containing the execution result and any error messages
     */

    /**
     * Default constructor for UserInfoService.
     */
    public UserInfoService() {
        // Default constructor
    }

    /**
     * Deletes user information records older than the specified number of days.
     * This method is used for data cleanup and maintenance operations.
     *
     * @param days the number of days to keep user information records
     */

package jcifs.internal.util;

/**
 * Utility class providing string manipulation methods for the jCIFS library.
 * Contains helper methods for string operations, including backported JDK functionality
 * for compatibility with older Java versions.
 */
public final class StringUtil {

    /**
     *
     */
    private StringUtil() {
    }

    /**
     * Implementation of {@link java.lang.String#join} backported for JDK7.