responseHeaders.put(name, values);
            }

            @Override
            public void addHeader(String name, String value) {
                responseHeaders.computeIfAbsent(name, k -> new ArrayList<>()).add(value);
            }

            @Override
            public void setIntHeader(String name, int value) {
            }

            @Override

        String referenceKey = "";

        if (summary.getReference() != null && !summary.getReference().isEmpty()) {
            referenceKey =
                    references.computeIfAbsent(summary.getReference(), k -> "[Help " + (references.size() + 1) + "]");
        }

        String msg = summary.getMessage();

        if (!referenceKey.isEmpty()) {
            if (msg.indexOf('\n') < 0) {

        final Set<MavenProject> projectsIncludingParents = new HashSet<>();
        for (MavenProject project : session.getProjects()) {
            superPomModels.computeIfAbsent(
                    project.getModelVersion(),
                    v -> superPomProvider.getSuperModel(v).getDelegate());
            boolean isAdded = projectsIncludingParents.add(project);

        for (String key : sessionKeys.keySet()) {
            if (key.contains(".v")) {
                String baseSession = key.substring(0, key.indexOf(".v"));
                sessionArchives.computeIfAbsent(baseSession, k -> new java.util.ArrayList<>()).add(key);
            }
        }

        // Remove old versions
        int removed = 0;

            skippedPatternSet.include(filePattern);
        }

        skippedTestByTestNameTransformations.computeIfAbsent(skippedPatternSet, k -> new ArrayList<>()).add(Pair.of(fullTestName, reason));
    }

    public void skipTestsByFilePattern(String filePattern, String reason) {

        for (ArtifactRepository repository : repositories) {
            String key = repository.getId();

            List<ArtifactRepository> aliasedRepos = reposByKey.computeIfAbsent(key, k -> new ArrayList<>());

            aliasedRepos.add(repository);
        }

        List<ArtifactRepository> effectiveRepositories = new ArrayList<>();

     * @param handler the consumer to invoke when the event is received.
     */
    public void addEventHandler(final String eventName, final Consumer<EventInfo> handler) {
        eventHandlers.computeIfAbsent(eventName, k -> new ArrayList<>()).add(handler);
    }

    /**
     * Fetches new events from OpenSearch that were created after the last check time.
     *
     * @return the list of new events.
     */

            artifacts.put(getKey(spec.artifact), spec);

            String key = spec.artifact.getDependencyConflictId();
            List<ArtifactVersion> artifactVersions = versions.computeIfAbsent(key, k -> new ArrayList<>());
            if (spec.artifact.getVersion() != null) {
                artifactVersions.add(new DefaultArtifactVersion(spec.artifact.getVersion()));
            }
        }

            return Collections.emptyMap();
        }

        @Override
        public void addRequestProperty(String key, String value) {
            requestProperties.computeIfAbsent(key, k -> new ArrayList<>()).add(value);
        }

        @Override
        public void setRequestProperty(String key, String value) {
            List<String> list = new ArrayList<>();

        context.setSystemProperties(request.getSystemProperties());
        // enrich user properties with project packaging
        Properties userProperties = request.getUserProperties();
        userProperties.computeIfAbsent(
                (Object) ProfileActivationContext.PROPERTY_NAME_PACKAGING, (p) -> (Object) rawModel.getPackaging());
        context.setUserProperties(userProperties);
        context.setProjectDirectory(