multimap.put("foo", 1);
    multimap.put("bar", 2);
    multimap.put("foo", 3);
    assertEquals(ImmutableSet.of(1, 3), multimap.get("foo"));
    assertEquals(2, multimap.expectedValuesPerKey);
  }

  public void testCreateFromMultimap() {
    HashMultimap<String, Integer> multimap = HashMultimap.create();
    multimap.put("foo", 1);
    multimap.put("bar", 2);
    multimap.put("foo", 3);

            if (dirManager != null && smbFile.getContext().getConfig().isUseDirectoryLeasing()) {
                return listFilesWithDirectoryLeasing(smbFile, dirManager);
            } else {
                // Fall back to regular directory listing
                return smbFile.listFiles();
            }
        } catch (CIFSException e) {
            throw SmbException.wrap(e);
        }
    }

    /**

    Multiset<String> multiset = HashMultiset.create();
    multiset.add("foo", 2);
    multiset.add("bar");
    assertEquals(3, multiset.size());
    assertEquals(2, multiset.count("foo"));
  }

  public void testCreateWithSize() {
    Multiset<String> multiset = HashMultiset.create(50);
    multiset.add("foo", 2);
    multiset.add("bar");
    assertEquals(3, multiset.size());
    assertEquals(2, multiset.count("foo"));
  }

        // The sessionSetup method would normally send authentication messages
        // Only mark the sessionSetup response as received, not the actual request/response
        doAnswer(invocation -> {
            ServerMessageBlock request = invocation.getArgument(0);
            ServerMessageBlock response = invocation.getArgument(1);
            // Only mark session setup responses as received, not our test request

    @Test
    public void testCleanup() throws Exception {
        // Allocate some regions from the pool and then release them back
        RdmaMemoryRegion region1 = bufferManager.getSendRegion(1024);
        RdmaMemoryRegion region2 = bufferManager.getReceiveRegion();

        // Release the regions back to the pool before cleanup
        bufferManager.releaseSendRegion(region1);
        bufferManager.releaseReceiveRegion(region2);

                }
            }
        } catch (Exception e) {
            log.debug("Cached directory listing failed, falling back to direct query", e);
        }
        
        // Fall back to direct server query
        return directory.performDirectEnumeration();
    }
}
```

## 10. Monitoring and Metrics

### 10.1 Directory Cache Statistics

        int n = handle.sendrecv(new byte[3], 0, 3, new byte[8], 64);
        assertEquals(0, n, "Default response length is 0 unless protocol fills it");
    }

    @Test
    @DisplayName("sendrecv falls back to stream write/read when no call/transact")
    void sendrecv_stream_fallback_uses_streams() throws Exception {
        // Arrange - use non-transact, non-call pipe type

import org.junit.Test;

/**
 * @author koichik
 *
 */
public class MultiIteratorTest {

    /**
     *
     */
    @Test
    public void test() {
        final List<String> list1 = asList("Foo", "Bar");
        final List<String> list2 = asList("Baz");

        @SuppressWarnings("unchecked")
        final Iterator<String> it = new MultiIterator<String>(list1.iterator(), list2.iterator());

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public final class PostForm {
  private final OkHttpClient client = new OkHttpClient();

  public void run() throws Exception {
    RequestBody formBody = new FormBody.Builder()
        .add("search", "Jurassic Park")
        .build();
    Request request = new Request.Builder()
        .url("https://en.wikipedia.org/w/index.php")
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        .build();