out.write(initial.getBytes("UTF-8"));
        }

        // Append additional content
        String append = "Appended content\n";
        try (OutputStream out = file.openOutputStream(true)) { // true = append mode
            out.write(append.getBytes("UTF-8"));
        }

        // Verify combined content
        try (InputStream in = file.getInputStream()) {

  }

  /**
   * Returns a new array that prepends {@code element} to {@code array}.
   *
   * @param element the element to prepend to the front of {@code array}
   * @param array the array of elements to append
   * @return an array whose size is one larger than {@code array}, with {@code element} occupying
   *     the first position, and the elements of {@code array} occupying the remaining elements.
   */

		if typ.IsRegular() {
			nameStr = string(name)
		} else if typ.IsDir() {
			// Use temp buffer to append a slash to avoid string concat.
			tmp = tmp[:len(name)+1]
			copy(tmp, name)
			tmp[len(tmp)-1] = '/' // SlashSeparator
			nameStr = string(tmp)
		}

		count--
		entries = append(entries, nameStr)
	}

	return entries, err
}

func globalSync() {

	}
}

func TestHTTPListenerAddr(t *testing.T) {
	if runtime.GOOS == "windows" {
		t.Skip()
	}

	nonLoopBackIP := getNonLoopBackIP(t)
	var casePorts []string
	for range 6 {
		casePorts = append(casePorts, getNextPort())
	}

	testCases := []struct {
		serverAddrs  []string
		expectedAddr string
	}{
		{[]string{"localhost:" + casePorts[0]}, "127.0.0.1:" + casePorts[0]},

    @Test
    public void test_constructor_withLongMessage() {
        // Test constructor with long message
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < 1000; i++) {
            sb.append("Dictionary error ");
        }
        String longMessage = sb.toString();
        DictionaryException exception = new DictionaryException(longMessage);

        assertNotNull(exception);

            if (StringUtil.isNotBlank(hostname)) {
                buf.append(hostname);
            }
            final String ip = IpAddressUtil.getUrlHost(ia);
            if (StringUtil.isNotBlank(ip)) {
                if (buf.length() > 0) {
                    buf.append(" : ");
                }
                buf.append(ip);
            }
        } catch (final Exception e) {
            // ignore

	targets := []Target{}
	for _, tgt := range list.targets {
		targets = append(targets, tgt)
	}

	return targets
}

// List - returns available target IDs.
func (list *TargetList) List() []TargetID {
	list.RLock()
	defer list.RUnlock()

	keys := []TargetID{}
	for k := range list.targets {
		keys = append(keys, k)
	}

	return keys
}

      // The names are repetitive so re-use the same builder to avoid allocations.
      val fileBuilder = StringBuilder(key).append('.')
      val truncateTo = fileBuilder.length
      for (i in 0 until valueCount) {
        fileBuilder.append(i)
        cleanFiles += directory / fileBuilder.toString()
        fileBuilder.append(".tmp")
        dirtyFiles += directory / fileBuilder.toString()
        fileBuilder.setLength(truncateTo)

	maps := make(map[K]V)
	now := time.Now()
	for ent := c.evictList.Back(); ent != nil; ent = ent.PrevEntry() {
		if now.After(ent.ExpiresAt) {
			continue
		}
		maps[ent.Key] = ent.Value
		// keys = append(keys, ent.Key)
	}
	return maps
}

// Keys returns a slice of the keys in the cache, from oldest to newest.
// Expired entries are filtered out.
func (c *LRU[K, V]) Keys() []K {
	c.mu.RLock()

	if config.Rule != nil {
		if config.Rule.DefaultRetention.Mode != "" {
			parts = append(parts, fmt.Sprintf("Mode: %s", config.Rule.DefaultRetention.Mode))
		}
		if config.Rule.DefaultRetention.Days != nil {
			parts = append(parts, fmt.Sprintf("Days: %d", *config.Rule.DefaultRetention.Days))
		}
		if config.Rule.DefaultRetention.Years != nil {
			parts = append(parts, fmt.Sprintf("Years: %d", *config.Rule.DefaultRetention.Years))
		}
	}