// Setup mock RPC response for failure
        WitnessRegisterResponse mockResponse = mock(WitnessRegisterResponse.class);
        when(mockResponse.isSuccess()).thenReturn(false);
        when(mockResponse.getError()).thenReturn("Registration failed");

        WitnessRpcClient mockRpc = mock(WitnessRpcClient.class);
        lenient().when(mockRpc.register(any(WitnessRegisterRequest.class))).thenReturn(mockResponse);

                    
                    return registration;
                } else {
                    throw new IOException("Witness registration failed: " + response.getError());
                }
                
            } catch (Exception e) {
                log.error("Failed to register for witness notifications", e);
                throw new RuntimeException(e);
            }

                            edge.isResolved(),
                            edge.getTarget() == null
                                    ? null
                                    : edge.getTarget().getMd().getError());
                    MetadataGraphVertex newV = res.addVertex(newMd);
                    MetadataGraphVertex sourceV = res.addVertex(edge.getSource().getMd());

                    res.addEdge(sourceV, newV, edge);

        injectSession1(request, session);

        if (session != null) {
            request.setServers(session.getRequest().getServers());
            request.setMirrors(session.getRequest().getMirrors());
            request.setProxies(session.getRequest().getProxies());
        }
    }

    @Override
    public void resolve(
            Artifact artifact,

                            null,
                            "must be unique but found duplicate server with id " + server.getId());
                }
            }
        }

        List<Mirror> mirrors = settings.getMirrors();

        if (mirrors != null) {
            for (Mirror mirror : mirrors) {
                validateStringNotEmpty(problems, "mirrors.mirror.id", mirror.getId(), mirror.getUrl());

            request.setForceUpdate(session.getRequest().isUpdateSnapshots());
            request.setServers(session.getRequest().getServers());
            request.setMirrors(session.getRequest().getMirrors());
            request.setProxies(session.getRequest().getProxies());
        }
    }

    @Override
    @SuppressWarnings("checkstyle:parameternumber")
    public ArtifactResolutionResult collect(

                .setForceUpdate(session.getRequest().isUpdateSnapshots());
        request.setServers(session.getRequest().getServers());
        request.setMirrors(session.getRequest().getMirrors());
        request.setProxies(session.getRequest().getProxies());

        for (MavenProject project : projects) {
            request.setArtifact(new ProjectArtifact(project));

        //     <mirrorOf>*</mirrorOf>
        //     <url>http://repository.sonatype.org/content/groups/public</url>
        //   </mirror>
        // </mirrors>

        for (Mirror mirror : settings.getMirrors()) {
            mirror = mirror.clone();

            request.addMirror(mirror);
        }

        request.setActiveProfiles(settings.getActiveProfiles());

        return servers;
    }

    public ArtifactResolutionRequest setMirrors(List<Mirror> mirrors) {
        this.mirrors = mirrors;

        return this;
    }

    public List<Mirror> getMirrors() {
        if (mirrors == null) {
            mirrors = new ArrayList<>();
        }

        return mirrors;
    }

    public ArtifactResolutionRequest setProxies(List<Proxy> proxies) {

            sessionBuilder.setVersionFilter(versionFilter);
        }

        DefaultMirrorSelector mirrorSelector = new DefaultMirrorSelector();
        for (Mirror mirror : request.getMirrors()) {
            mirrorSelector.add(
                    mirror.getId(),
                    mirror.getUrl(),
                    mirror.getLayout(),
                    false,