this.trace = trace;
    }

    @Nonnull
    @Override
    public S getSession() {
        return session;
    }

    @Override
    public RequestTrace getTrace() {
        return trace;
    }

     * hierarchy and can carry additional diagnostic information.
     *
     * @return the request trace, or {@code null} if no trace information is available
     */
    @Nullable
    RequestTrace getTrace();

    /**
     * Returns a hashcode value for this request, based on all significant fields.
     * Implementations must ensure that if two requests are equal according to

        ArtifactInstallerRequest request =
                ArtifactInstallerRequest.builder().session(session).trace(trace).build();

        assertEquals(trace, request.getTrace());
        assertEquals(session, request.getSession());
    }

    @Test
    void testDependencyResolverRequestEquality() {
        Session session = mock(Session.class);

            }
        }

        DependencyRequest depRequest = new DependencyRequest(collect, filter);
        depRequest.setTrace(trace);

        DependencyNode node;
        try {
            collect.setTrace(RequestTrace.newChild(trace, depRequest));
            node = repoSystem.collectDependencies(session, collect).getRoot();
            result.setDependencyGraph(node);

                LegacyLocalRepositoryManager.overlay(localRepository, legacySupport.getRepositorySession(), repoSystem);

        InstallRequest request = new InstallRequest();

        request.setTrace(RequestTrace.newChild(null, legacySupport.getSession().getCurrentProject()));

        org.eclipse.aether.artifact.Artifact mainArtifact = RepositoryUtils.toArtifact(artifact);
        mainArtifact = mainArtifact.setFile(source);

                LegacyLocalRepositoryManager.overlay(localRepository, legacySupport.getRepositorySession(), repoSystem);

        DeployRequest request = new DeployRequest();

        request.setTrace(RequestTrace.newChild(null, legacySupport.getSession().getCurrentProject()));

        org.eclipse.aether.artifact.Artifact mainArtifact = RepositoryUtils.toArtifact(artifact);
        mainArtifact = mainArtifact.setFile(source);

    public void setRestriction(final String restriction) {
        this.restriction = restriction;
    }

    /**
     * Gets the price information.
     * @return the price
     */
    public String getPrice() {
        return price;
    }

    /**
     * Sets the price information.
     * @param price the price to set
     */
    public void setPrice(final String price) {
        this.price = price;