for (field in staticFields) {
      field.setAccessible(true)
      val server = field.get(null) as? MockWebServer ?: continue

      // Put the instance in the store, so JUnit closes it for us in afterAll.
      store.put(field, server)

      server.start()
    }
  }

  override fun beforeEach(context: ExtensionContext) {
    val testInstance = context.testInstance.get()

        assertTrue(output.contains("42"));
        assertTrue(output.contains("true"));

        // Test close
        logStream.close();
        // After close, the stream should not accept more writes
        // but PrintStream doesn't throw exceptions on write after close
    }

    @Test
    void testConcurrentAccess() throws InterruptedException {
        // Test thread safety of getInstance

        ) {
          webSocket.send(text)
        }

        override fun onClosing(
          webSocket: WebSocket,
          code: Int,
          reason: String,
        ) {
          webSocket.close(1000, null)
          latch.countDown()
        }

        override fun onFailure(
          webSocket: WebSocket,
          t: Throwable,
          response: Response?,
        ) {

        rbc = Channels.newChannel(website.openStream());
        FileOutputStream fos = new FileOutputStream(destination);
        fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
        fos.close();
        rbc.close();
    }

                  }
                },
              ).build()
          }
        }
      if ("close".equals(response.request.header("Connection"), ignoreCase = true) ||
        "close".equals(response.header("Connection"), ignoreCase = true)
      ) {
        exchange.noNewExchangesOnConnection()
      }

                try {
                  serverSocket.close();
                  finalizeReferentRan.set(true);
                } catch (IOException e) {
                  throw new UncheckedIOException(e);
                }
              }
            }
          };
      references.add(reference);
      return myServer;
    }

    @Override
    public void close() throws IOException {
      serverSocket.close();

                try {
                  serverSocket.close();
                  finalizeReferentRan.set(true);
                } catch (IOException e) {
                  throw new UncheckedIOException(e);
                }
              }
            }
          };
      references.add(reference);
      return myServer;
    }

    @Override
    public void close() throws IOException {
      serverSocket.close();

            return false;
        }
    }

    /**
     * Get cluster name for witness discovery
     *
     * @param serverAddress the server address
     * @return cluster name or null
     */
    private String getClusterName(InetAddress serverAddress) {
        // Simple implementation - could be enhanced with proper cluster discovery
        String hostname = serverAddress.getHostName();

    }

    // Test that close method exists (inherited)
    public void test_closeMethodExists() {
        // Test that close method is available (inherited from parent)
        try {
            // Just verify the method exists, don't actually call it
            crawlerEngineClient.getClass().getMethod("close");
            assertTrue(true);
        } catch (NoSuchMethodException e) {

    }

    @Test
    @DisplayName("close does nothing and does not touch handle")
    void close_doesNothing() throws Exception {
        // Arrange
        SmbPipeOutputStream out = newStream();
        // constructor already calls handle.getPipe(); clear interactions to focus on close()
        clearInvocations(handle);

        // Act
        out.close();

        // Assert