}

    @Test
    void testOpenConnection_CachedHandler_ReusesExistingHandler() throws Exception {
        // This test verifies that once a handler is cached, subsequent calls reuse it.
        setupMockProtocolHandlers();
        URL url1 = new URL("http://example.com/resource1");
        URL url2 = new URL("http://example.com/resource2");

            assertTrue(initialAllocated >= 2, "Should have allocated at least 2 regions");
            assertTrue(initialActive >= 2, "Should have at least 2 active regions");

            // Test buffer release and reuse
            bufferManager.releaseSendRegion(sendRegion);
            bufferManager.releaseReceiveRegion(recvRegion);

            // Allocate again to test pooling

			return convertAccessError(err, errVolumeAccessDenied)
		}
	}

	// Use a small block size to start sending quickly
	w := newMetacacheWriter(wr, 16<<10)
	w.reuseBlocks = true // We are not sharing results, so reuse buffers.
	defer w.Close()
	out, err := w.stream()
	if err != nil {
		return err
	}
	defer xioutil.SafeClose(out)
	var objsReturned int

	objReturned := func(metadata []byte) {
		if opts.Limit <= 0 {

  private var closed: Boolean = false

  /**
   * The number of HTTP requests received thus far by this server. This may exceed the number of
   * HTTP connections when connection reuse is in practice.
   */
  public val requestCount: Int
    get() = atomicRequestCount.get()

  /** The number of bytes of the POST body to keep in memory to the given limit. */

    assertThat(response3.body.string()).isEqualTo("GHI")
    // Settings connection.
    assertThat(server.takeRequest().exchangeIndex).isEqualTo(0)
    // Reuse settings connection.
    assertThat(server.takeRequest().exchangeIndex).isEqualTo(1)
    // Reuse settings connection.
    assertThat(server.takeRequest().exchangeIndex).isEqualTo(2)
    // New connection!
    assertThat(server.takeRequest().exchangeIndex).isEqualTo(0)

        if (th != null) {
            this.treeHandle = null;

            // Optimization: For non-strict lifecycle, delay tree handle closure
            // to allow connection reuse for subsequent operations
            if (this.transportContext.getConfig().isStrictResourceLifecycle()) {
                th.close();
            } else {

### Creating the `Settings` only once with `lru_cache` { #creating-the-settings-only-once-with-lru-cache }

Reading a file from disk is normally a costly (slow) operation, so you probably want to do it only once and then reuse the same settings object, instead of reading it for each request.

But every time we do:

```Python
Settings()
```

      InternetDomainName domain = InternetDomainName.from(inputName);

      /*
       * We would ordinarily use constants for the expected results, but
       * doing it by derivation allows us to reuse the test case definitions
       * used in other tests.
       */

      String expectedName = Ascii.toLowerCase(inputName);
      expectedName = expectedName.replaceAll("[\u3002\uFF0E\uFF61]", ".");

import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;

public class DirectoryLeaseManager {
    private final CIFSContext context;
    private final LeaseManager baseLeaseManager;  // Reuse existing lease manager
    private final ConcurrentHashMap<String, DirectoryCacheEntry> directoryCache;
    private final ConcurrentHashMap<Smb2LeaseKey, String> leaseToPath;
    private final ScheduledExecutorService scheduler;

    assertNotNull(region);
    assertTrue(region.getSize() >= 1024);
    
    // Test buffer release
    manager.releaseSendRegion(region);
    
    // Test reuse
    RdmaMemoryRegion region2 = manager.getSendRegion(1024);
    assertNotNull(region2);
    
    manager.cleanup();
}
```

### 7.2 Integration Tests
```java
@Test