private final LinkedList<String> contextStack = new LinkedList<String>();

    @Override
    public void warning(String message) {
        LOGGER.warn(String.format("%s: %s", contextStack.getFirst(), message));
    }

    @Override
    public void start(String context) {
        contextStack.addFirst(context);
    }

    @Override
    public void finish() {

            .merge(
                k3(),
                v3(),
                (oldV, newV) -> {
                  throw new AssertionFailedError(
                      "Should not call merge function if key was absent");
                }));
    expectAdded(e3());
  }

  @MapFeature.Require({SUPPORTS_PUT, ALLOWS_NULL_VALUES})
  @CollectionSize.Require(absent = ZERO)
  public void testMappedToNull() {

            try {
                groupService.store(entity);
                saveInfo(messages -> messages.addSuccessCrudCreateCrudTable(GLOBAL));
            } catch (final Exception e) {
                logger.warn("Failed to add {}", entity, e);
                throwValidationError(messages -> messages.addErrorsCrudFailedToCreateCrudTable(GLOBAL, buildThrowableMessage(e)),
                        this::asEditHtml);
            }

            try {
                pathMappingService.store(entity);
                saveInfo(messages -> messages.addSuccessCrudCreateCrudTable(GLOBAL));
            } catch (final Exception e) {
                logger.warn("Failed to process a request.", e);
                throwValidationError(messages -> messages.addErrorsCrudFailedToCreateCrudTable(GLOBAL, buildThrowableMessage(e)),
                        this::asEditHtml);
            }

            try (InputStream inputStream = form.synonymFile.getInputStream()) {
                file.update(inputStream);
            } catch (final IOException e) {
                logger.warn("Failed to process a request.", e);
                throwValidationError(messages -> messages.addErrorsFailedToUploadSynonymFile(GLOBAL),
                        () -> redirectWith(getClass(), moreUrl("uploadpage/" + form.dictId)));

        super("Unknown lifecycle " + lifecycleId);
        this.lifecycleId = (lifecycleId != null) ? lifecycleId : "";
    }

    /**
     * Gets the identifier of the lifecycle that was not found.
     *
     * @return The identifier of the lifecycle that was not found, never {@code null}.
     */
    public String getLifecycleId() {
        return lifecycleId;
    }

   * the inbound request was truncated, this exception will be non-null.
   */
  val failure: IOException? = null,
) {
  val method: String?
  val path: String?

  /**
   * The TLS handshake of the connection that carried this request, or null if the request was
   * received without TLS.
   */
  val handshake: Handshake?
  val requestUrl: HttpUrl?

        .fastFallback(false)
        .apply {
          retryOnConnectionFailure = false
        }
        .build()

    executeSynchronously(request)
      .assertFailureMatches("stream was reset: REFUSED_STREAM")

    assertThat(client.routeDatabase.failedRoutes).isEmpty()
    assertThat(server1.requestCount).isEqualTo(1)
    assertThat(server2.requestCount).isEqualTo(0)

                                    logger.warn("Failed to parse {}", mapping);
                                }
                            } else {
                                logger.warn("Unknown mapping type: {}={}", key, mapping);
                            }
                        } catch (final Exception e) {
                            logger.warn("Failed to parse {}", values[0], e);
                        }

                try {
                    l.onConnect();
                } catch (final Exception e) {
                    logger.warn("Failed to invoke " + l, e);
                }
            });

            connected = true;
        } else {
            logger.warn("Could not connect to {}", address);
        }
    }

    protected Client createClient() {
        final String[] hosts =