// so there is no object state put at risk by stopping the threads abruptly. In some cases a test
  // may put a thread into an uninterruptible operation intentionally, so there is no other way to
  // clean up these threads.
  @SuppressWarnings("deprecation")
  @Override
  public void tearDown() throws Exception {
    stop();
    join();

    if (uncaughtThrowable != null) {

This can be very useful for setting up **resources** that you need to use for the whole app, and that are **shared** among requests, and/or that you need to **clean up** afterwards. For example, a database connection pool, or loading a shared machine learning model.

## Use Case { #use-case }

Let's start with an example **use case** and then see how to solve it with this.

    socketFactory[proxyServer2] = server2.socketAddress

    println("\n\nRequest to ${server2.socketAddress}")
    executeSynchronously(request)
      .apply {
        // We may have a single failed request if not clean shutdown
        if (cleanClose) {
          assertSuccessful()
          assertCode(200)

          assertThat(server2.requestCount).isEqualTo(1)
        } else {

        assertNotNull(heartbeatInterval);
        assertEquals(10000, heartbeatInterval.intValue());

        // Test integer conversion for cleanup days
        int cleanupDays = fessConfig.getDayForCleanup();
        // cleanupDays is primitive int, not Integer
        assertEquals(3, cleanupDays);

        // Test integer conversion for crawler processes

			}
			diskHealthCheckOK(ctx, err)
			return err
		}
		diskHealthCheckOK(ctx, err)
		if len(entries) == 0 {
			return nil
		}
		dirObjects := make(map[string]struct{})

		// Avoid a bunch of cleanup when joining.
		current = strings.Trim(current, SlashSeparator)
		for i, entry := range entries {
			if contextCanceled(ctx) {
				return ctx.Err()
			}
			if opts.Limit > 0 && objsReturned >= opts.Limit {

     * and cleaning up quoted strings.
     *
     * @param list the list to retrieve the value from
     * @param index the index of the value to retrieve
     * @return the cleaned value at the specified index, or empty string if index is out of bounds
     */
    static String getValue(final List<String> list, final int index) {
        if (index >= list.size()) {
            return StringUtil.EMPTY;

type localLocker struct {
	mutex     sync.Mutex
	waitMutex atomic.Int32
	lockMap   map[string][]lockRequesterInfo
	lockUID   map[string]string // UUID -> resource map.

	// the following are updated on every cleanup defined in lockValidityDuration
	readers         atomic.Int32
	writers         atomic.Int32
	lastCleanup     atomic.Pointer[time.Time]
	locksOverloaded atomic.Int64
}

// getMutex will lock the mutex.

    client =
      client
        .newBuilder()
        // Since this test knowingly leaks a connection, avoid using the default shared connection
        // pool, which should remain clean for subsequent tests.
        .connectionPool(ConnectionPool())
        .addNetworkInterceptor(
          Interceptor { chain: Interceptor.Chain? ->
            val response =
              chain!!.proceed(

			}
		})
	}
}

func Test_pathNeedsClean(t *testing.T) {
	type pathTest struct {
		path, result string
	}

	cleantests := []pathTest{
		// Already clean
		{"", "."},
		{"abc", "abc"},
		{"abc/def", "abc/def"},
		{"a/b/c", "a/b/c"},
		{".", "."},
		{"..", ".."},
		{"../..", "../.."},
		{"../../abc", "../../abc"},
		{"/abc", "/abc"},

		}

		if err := tx.Find(reflectResults.Addr().Interface()).Error; err != nil {
			return err
		}
	}

	fieldValues := make([]interface{}, len(relForeignFields))

	// clean up old values before preloading
	switch reflectValue.Kind() {
	case reflect.Struct:
		switch rel.Type {
		case schema.HasMany, schema.Many2Many: