* iterable is empty.
   *
   * <p><b>Java 8+ users:</b> the {@code Stream} equivalent to this method is {@code
   * stream.collect(MoreCollectors.toOptional()).orElse(defaultValue)}.
   *
   * @throws IllegalArgumentException if the iterator contains multiple elements
   */
  @ParametricNullness
  public static <T extends @Nullable Object> T getOnlyElement(

                logger.warn("Failed to process a request.", e);
                throwValidationErrorApi(messages -> messages.addErrorsCrudFailedToDeleteCrudTable(GLOBAL, buildThrowableMessage(e)));
            }
        }).orElse(() -> {
            throwValidationErrorApi(messages -> messages.addErrorsCrudCouldNotFindCrudTable(GLOBAL, id));
        });
        return asJson(new ApiResponse().status(Status.OK).result());
    }

    /**

        }
    }

    @Override
    public Object getAttribute(final String name) {
        return LaRequestUtil.getOptionalRequest().map(req -> req.getAttribute(name)).orElse(null);
    }

    @Override
    public Locale getLocale() {
        return ComponentUtil.getRequestManager().getUserLocale();
    }

    @Override
    public SearchRequestType getType() {

    public CrawlingInfoCB newConditionBean() {
        return new CrawlingInfoCB();
    }

    @Override
    protected Entity doReadEntity(ConditionBean cb) {
        return facadeSelectEntity(downcast(cb)).orElse(null);
    }

    public CrawlingInfo selectEntityWithDeletedCheck(CBCall<CrawlingInfoCB> cbLambda) {
        return facadeSelectEntityWithDeletedCheck(createCB(cbLambda));
    }

    public ElevateWordCB newConditionBean() {
        return new ElevateWordCB();
    }

    @Override
    protected Entity doReadEntity(ConditionBean cb) {
        return facadeSelectEntity(downcast(cb)).orElse(null);
    }

    public ElevateWord selectEntityWithDeletedCheck(CBCall<ElevateWordCB> cbLambda) {
        return facadeSelectEntityWithDeletedCheck(createCB(cbLambda));
    }

    public PathMappingCB newConditionBean() {
        return new PathMappingCB();
    }

    @Override
    protected Entity doReadEntity(ConditionBean cb) {
        return facadeSelectEntity(downcast(cb)).orElse(null);
    }

    public PathMapping selectEntityWithDeletedCheck(CBCall<PathMappingCB> cbLambda) {
        return facadeSelectEntityWithDeletedCheck(createCB(cbLambda));
    }

                logger.warn("Failed to process a request.", e);
                throwValidationErrorApi(messages -> messages.addErrorsCrudFailedToDeleteCrudTable(GLOBAL, buildThrowableMessage(e)));
            }
        }).orElse(() -> {
            throwValidationErrorApi(messages -> messages.addErrorsCrudCouldNotFindCrudTable(GLOBAL, id));
        });
        return asJson(new ApiResponse().status(Status.OK).result());
    }

    /**

            return getDelegate()
                    .getToolchainFromBuildContext(session.getSession(), type)
                    .map(ToolchainManagerFactory.this::getToolchainV3)
                    .orElse(null);
        }

        @Override
        public List<Toolchain> getToolchains(MavenSession session, String type, Map<String, String> requirements) {
            return new MappedList<>(

     * Implementation may override with absolute path instead.
     */
    default Path directory() {
        Path src = Path.of("src");
        return module().map(src::resolve)
                .orElse(src)
                .resolve(scope().id())
                .resolve(language().id());
    }

    /**
     * {@return the list of patterns for the files to include}.

        Map<String, Optional<String>> cache = new HashMap<>();
        return s -> cache.computeIfAbsent(s, v -> Optional.ofNullable(callback.apply(v)))
                .orElse(null);
    }