this.callback = callback;
    }

    @Override
    public void configure(Binder binder) {
        if (extension.getKey() != null) {
            XmlNode configuration = extension.getConfiguration();
            if (configuration == null) {
                configuration = XmlNode.newInstance("configuration");
            }
            UnaryOperator<String> cb = Interpolator.memoize(callback);

        } else {
            writer.accept("\t\tGoal:                   " + mojoExecId);
        }
        if (mojoExecution.getConfiguration() != null) {
            writer.accept("\t\tConfiguration:          " + mojoExecution.getConfiguration());
        }
        if (mojoExecution.getMojoDescriptor().getDependencyCollectionRequired() != null) {
            writer.accept("\t\tDependencies (collect): "

        this.callback = callback;
    }

    @Override
    public void configure(Binder binder) {
        if (extension.getKey() != null) {
            XmlNode configuration = extension.getConfiguration();
            if (configuration == null) {
                configuration = XmlNode.newInstance("configuration");
            }
            UnaryOperator<String> cb = Interpolator.memoize(callback);

                + "  </build>\n"
                + "</project>";

        Model model = fromXml(xml);
        Plugin plugin = model.getBuild().getPlugins().get(0);
        XmlNode node = plugin.getConfiguration();
        assertNotNull(node);
        assertEquals("http://maven.apache.org/POM/4.0.0", node.namespaceUri());
        assertEquals("m", node.prefix());
        assertEquals("configuration", node.name());

        assertNull(execution.getConfiguration());

        lifeCycleExecutionPlanCalculator.setupMojoExecution(
                session, session.getCurrentProject(), execution, new HashSet<>());
        assertNotNull(execution.getConfiguration());
        assertEquals("1.0", execution.getConfiguration().getChild("version").getAttribute("default-value"));
    }

    @Test

        assertEquals("activated", result.getEffectiveModel().getProperties().get("profile.file"));
        Xpp3Dom conf = (Xpp3Dom)
                result.getEffectiveModel().getBuild().getPlugins().get(0).getConfiguration();
        assertNotNull(conf);
        assertEquals("1.5", conf.getChild("source").getValue());
        assertEquals("  1.5  ", conf.getChild("target").getValue());
    }

    @Test

            }

            jtc.addProvideToken(key, matcher);
        }

        // populate the configuration section
        Xpp3Dom dom = (Xpp3Dom) model.getConfiguration();
        Xpp3Dom javahome = dom != null ? dom.getChild(JavaToolchainImpl.KEY_JAVAHOME) : null;
        if (javahome == null) {
            throw new MisconfiguredToolchainException(

     * {@link javax.inject.Named} annotation.
     */
    public String getKey() {
        return key;
    }

    /**
     * Returns the configuration for this extension.
     */
    public XmlNode getConfiguration() {
        return configuration;
    }

    private static final ExtensionDescriptorBuilder BUILDER = new ExtensionDescriptorBuilder();

    public static CoreExtensionEntry discoverFrom(ClassRealm loader) {

            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.children().stream()
                        .filter(c -> !"wagonProvider".equals(c.name()))

                val = interpolate(org);
                if (org != val) {
                    notifier.setType(val);
                }
                // Configuration
                visit(notifier.getConfiguration());
            }
        }

        private void visit(BuildBase build) {
            if (build != null) {
                String org, val;
                // Plugins