authenticationManager.insert(user);

        assertEquals(1, chain.updateCallCount);
        assertEquals(user, chain.lastUpdatedUser);
    }

    // Test insert with multiple chains
    public void test_insert_multipleChains() {
        User user = createTestUser("testuser");
        TestAuthenticationChain chain1 = new TestAuthenticationChain();

              // It's definitely safe to multiply into numerator and denominator.
              numerator *= n;
              denominator *= i;
              numeratorBits += nBits;
            } else {
              // It might not be safe to multiply into numerator and denominator,
              // so multiply (numerator / denominator) into result.

  }

  /**
   * Returns the number of times {@link Cache} lookup methods have returned an uncached (newly
   * loaded) value, or null. Multiple concurrent calls to {@link Cache} lookup methods on an absent
   * value can result in multiple misses, all returning the results of a single cache load
   * operation.
   */
  public long missCount() {
    return missCount;
  }

  /**

        assertNotNull(specialProvider);
        assertEquals(Long.valueOf(4096L), specialConfig.getTimeAdjustTimeMillisAsLong());
    }

    // Test memory efficiency with multiple providers
    public void test_memoryEfficiency() {
        // Create and discard multiple providers
        for (int i = 0; i < 100; i++) {
            FessTimeResourceProvider tempProvider = new FessTimeResourceProvider(mockConfig);

        assertNotNull(confPath);

        // Test with empty names
        confPath = ResourceUtil.getConfPath();
        assertNotNull(confPath);

        // Test with multiple names
        confPath = ResourceUtil.getConfPath("dir1", "dir2", "file.conf");
        assertNotNull(confPath);
        assertTrue(confPath.toString().contains("dir1"));

        user = new TestFessUser("ユーザー名", new String[] {}, new String[] {}, new String[] {});
        assertEquals("ユーザー名", user.getName());
    }

    public void test_getRoleNames() {
        // Test with multiple roles
        String[] roles = { "admin", "user", "manager" };
        FessUser user = new TestFessUser("testuser", roles, new String[] {}, new String[] {});
        assertArrayEquals(roles, user.getRoleNames());

        } catch (final Exception e) {
            assertTrue("Empty command should be handled", true);
        }
    }

    // Test multiple commands configuration
    public void test_multiple_commands_configuration() throws Exception {
        // Test setting multiple commands without triggering execution
        final List<String> commands =

A single HTTP call may require follow-up requests to be made to handle authentication challenges, redirects, and HTTP-layer timeouts. In such cases multiple connections, requests, and responses may be attempted. Follow-ups are another reason a single call may trigger multiple events of the same type.

        assertNotNull(retrievedByClassName);
        assertEquals(testScriptEngine, retrievedByClassName);
    }

    // Test register method with multiple engines
    public void test_register_multipleEngines() {
        TestScriptEngine engine1 = new TestScriptEngine("engine1");
        TestScriptEngine engine2 = new TestScriptEngine("engine2");

        engine1.register();

            }
        };

        // Execute stop
        dataStore.stop();

        assertTrue(stopCalled.get());
    }

    public void test_stop_multipleCalls() {
        // Test multiple stop calls
        final AtomicInteger stopCallCount = new AtomicInteger(0);

        dataStore = new DataStore() {
            @Override