List<User> deleteCalls = new ArrayList<>();
        List<Map.Entry<String, String>> changePasswordCalls = new ArrayList<>();
        List<User> loadCalls = new ArrayList<>();

        // Control behavior
        boolean updateThrowsException = false;
        boolean deleteThrowsException = false;
        boolean changePasswordThrowsException = false;
        boolean loadThrowsException = false;

        try {
            ThreadDumpUtil.processThreadDump(null);
            fail("Should throw NullPointerException for null consumer");
        } catch (NullPointerException e) {
            // Expected behavior
        }
    }

    public void test_processThreadDump_multipleThreads() {
        AtomicInteger threadCount = new AtomicInteger(0);
        AtomicInteger stackTraceCount = new AtomicInteger(0);

  }

  @GwtIncompatible // different overflow behavior; could probably be made to work by using ~~
  public void testConcat_overflow_negative() {
    int dim1 = 1 << 16;
    int dim2 = 1 << 15;
    assertThat(dim1 * dim2).isLessThan(0);
    testConcatOverflow(dim1, dim2);
  }

  @GwtIncompatible // different overflow behavior; could probably be made to work by using ~~

   * String#equalsIgnoreCase}). However in almost all cases that ASCII strings are used, the author
   * probably wanted the behavior provided by this method rather than the subtle and sometimes
   * surprising behavior of {@code toUpperCase()} and {@code toLowerCase()}.
   *
   * @since 16.0
   */
  public static boolean equalsIgnoreCase(CharSequence s1, CharSequence s2) {

 *
 * <ul>
 *   <li><b>Warning:</b> as with any collection, it is almost always a bad idea to modify an element
 *       (in a way that affects its {@link Object#equals} behavior) while it is contained in a
 *       collection. Undefined behavior and bugs will result. It's generally best to avoid using
 *       mutable objects as elements at all, as many users may expect your "immutable" object to be
 *       <i>deeply</i> immutable.

import java.util.Map;
import java.util.Set;

/**
 * A wrapper implementation of Map<String, Object> that provides special handling
 * for document data. This class wraps an existing map and provides custom behavior
 * for the entrySet method to ensure language fields appear first in iteration order.
 * Used throughout the Fess search system for document data manipulation.
 *
 */
public class DocMap implements Map<String, Object> {

 *
 */
public class UserService {

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

    /** User behavior for database operations */
    @Resource
    protected UserBhv userBhv;

    /** Login assistance for authentication operations */
    @Resource
    protected FessLoginAssist fessLoginAssist;

   */
  abstract Collection<V> createCollection();

  /**
   * Creates the collection of values for an explicitly provided key. By default, it simply calls
   * {@link #createCollection()}, which is the correct behavior for most implementations. The {@link
   * LinkedHashMultimap} class overrides it.
   *
   * @param key key to associate with values in the collection
   * @return an empty collection of values
   */

          throw new AssertionFailedError("You weren't supposed to actually invoke me!");
        }
      };

  public void testAnyAndNone_logicalOps() throws Exception {
    // These are testing behavior that's never promised by the API, but since
    // we're lucky enough that these do pass, it saves us from having to write
    // more excruciating tests! Hooray!

    assertSame(CharMatcher.any(), CharMatcher.none().negate());

 * hostnames (e.g., www.example.com and example.com).</p>
 */
public class DuplicateHostService extends FessAppService {

    /**
     * DBFlute behavior for duplicate host operations.
     * Provides database access methods for DuplicateHost entities.
     */
    @Resource
    protected DuplicateHostBhv duplicateHostBhv;

    /**