assertEquals(threadCount * operationsPerThread, successCount.get());
        assertTrue(overallTimeMs < 1000, "Operations should complete quickly without lock contention");

        pool.close();
    }

    /**
     * Test buffer cache performance with concurrent operations
     */
    @Test
    public void testBufferCachePerformance() throws Exception {
        int threadCount = 10;

        os.write(testData);
        os.flush();
        os.close();

        // Assert
        // Verify that data was written to the underlying stream through CacheStream
        verify(initialOutputStream).write(testData);
        verify(initialOutputStream).flush();
        verify(initialOutputStream).close();
    }

    /**

    url =
      serverIpv4
        .url("/")
        .newBuilder()
        .host("localhost")
        .build()
  }

  @AfterEach
  internal fun tearDown() {
    serverIpv4.close()
    serverIpv6.close()
  }

  @Test
  fun callIpv6FirstEvenWhenIpv4IpIsListedFirst() {
    dnsResults =
      listOf(
        localhostIpv4,
        localhostIpv6,
      )
    serverIpv4.enqueue(

	w := newMetacacheWriter(&buf, 1<<20)
	defer w.Close()
	err := r.readFn(func(object metaCacheEntry) bool {
		err := w.write(object)
		if err != nil {
			t.Fatal(err)
		}
		return true
	})
	r.Close()
	if err != io.EOF {
		t.Fatal(err)
	}
	err = w.Close()
	if err != nil {
		t.Fatal(err)
	}

	r = newMetacacheReader(&buf)
	defer r.Close()
	names, err := r.readNames(-1)

                            return new FileInputStream(testFile);
                        }

                        @Override
                        public void close() throws IOException {
                            // Nothing to close
                        }
                    };
                } catch (Exception e) {
                    throw new RuntimeException(e);
                }
            }

                h.close();
            }
        } catch (final SmbException se) {
            throw seToIoe(se);
        } finally {
            this.tmp = null;
            this.handle = null;
            if (this.unsharedFile) {
                this.file.close();
            }
        }
    }

    /**
     * Reads a byte of data from this input stream.
     *
     * @throws IOException

        client.close();
    }

    @Test
    void testGetWitnessServer() throws Exception {
        WitnessRpcClient mockRpc = mock(WitnessRpcClient.class);
        TestWitnessClient client = new TestWitnessClient(witnessServer, mockContext, mockRpc);

        assertEquals(witnessServer, client.getWitnessServer());

        client.close();
    }

    /**

import jcifs.internal.Request;
import jcifs.internal.smb1.SMB1SigningDigest;
import jcifs.internal.smb1.ServerMessageBlock;
import jcifs.internal.util.SMBUtil;

/**
 * SMB1 Close file request message.
 *
 * This command is used to close a file that was previously opened
 * with an Open command.
 */
public class SmbComClose extends ServerMessageBlock implements Request<SmbComBlankResponse> {

          @Override
          public void close() {
            throw new AssertionError(
                "ForwardingExecutorService should have used the default method"
                    + " ExecutorService.close() (which would forward to methods like shutdown() on"
                    + " the delegate) instead of forwarding to delegate.close()");
          }
        };
    ExecutorService wrapper =

                final boolean timeout = ex instanceof SocketTimeoutException || msg != null && msg.equals("Read timed out");
                final boolean closed = msg != null && msg.equals("Socket closed");

                if (closed) {
                    log.trace("Remote closed connection");
                } else if (timeout) {
                    log.debug("socket timeout in non peek state", ex);
                } else {