for (String potentialVariantName : getConfigurationNames()) {
            if (!configurationDefinitions.containsKey(potentialVariantName)) {
                builder.add(getConfiguration(potentialVariantName));
            }
        }
        return builder.build();
    }

    @Override
    public MutableIvyModuleResolveMetadata asMutable() {
        return metadata.asMutable();

        } catch (Exception e) {
            throw new PluginContainerException(mojoDescriptor, pluginRealm, "Unable to lookup Mojo", e);
        }

        XmlNode dom = mojoExecution.getConfiguration() != null
                ? mojoExecution.getConfiguration().getDom()
                : null;

        PlexusConfiguration pomConfiguration;

        if (dom == null) {

        LocalComponentGraphResolveState state = getComponentState(module, componentIdentifier);
        ConfigurationGraphResolveState configuration = state.getConfiguration(configurationName);
        if (configuration == null) {
            throw new IllegalArgumentException(String.format("Expected configuration '%s' to be present in %s", configurationName, componentIdentifier));
        }

        WrapperExecutor wrapper = WrapperExecutor.forProjectDirectory(layout.getRootDirectory());
        if (wrapper.getDistribution() != null) {
            return new ZippedDistribution(wrapper.getConfiguration(), clock);
        }
        return getDownloadedDistribution(GradleVersion.current().getVersion());
    }

    /**
     * Returns the distribution installed in the specified directory.
     */

            authBuilder.addPrivateKey(server.getPrivateKey(), server.getPassphrase());
            authSelector.add(server.getId(), authBuilder.build());

            if (server.getConfiguration() != null) {
                XmlNode dom = server.getDelegate().getConfiguration();
                List<XmlNode> children = dom.getChildren().stream()
                        .filter(c -> !"wagonProvider".equals(c.getName()))

                plugin.setArtifactId(extension.getArtifactId());
                plugin.setVersion(extension.getVersion());
                XmlNode configuration = extension.getDelegate().getConfiguration();
                if (configuration != null) {
                    plugin.setConfiguration(new Xpp3Dom(configuration));
                }
                extensionPlugins.add(plugin);
            }

        DefaultConfigurationMetadata md = (DefaultConfigurationMetadata) super.populateConfigurationFromDescriptor(name, configurationDefinitions);
        if (filterConstraints && md != null) {
            // if the first call to getConfiguration is done before getDerivedVariants() is called
            // then it means we're using the legacy matching, without attributes, and that the metadata

                realm,
                Collections.singleton(artifacts.get(0).getFile()),
                extension.getGroupId() + ":" + extension.getArtifactId(),
                extension.getConfiguration());
    }

    private List<Artifact> resolveExtension(
            CoreExtension extension,
            RepositorySystemSession repoSession,
            List<RemoteRepository> repositories,

                        .get("key"));
        org.codehaus.plexus.util.xml.Xpp3Dom toolchainConfiguration = (org.codehaus.plexus.util.xml.Xpp3Dom)
                result.getEffectiveToolchains().getToolchains().get(0).getConfiguration();
        assertEquals(
                interpolatedValue, toolchainConfiguration.getChild("jdkHome").getValue());
        assertNotNull(result.getProblems());
        assertEquals(0, result.getProblems().size());

    }

    public Collection<ComponentVerificationMetadata> getVerificationMetadata() {
        return verificationMetadata.values();
    }

    public DependencyVerificationConfiguration getConfiguration() {
        return config;
    }

    public List<String> getTopLevelComments() {
        return topLevelComments;
    }

    public List<String> getSuggestedWriteFlags() {