"Expected 'UnresolvableModelException' not thrown.");
        assertNotNull(e.getMessage());
        assertThat(e.getMessage(), containsString("Could not find artifact org.apache:apache:pom:0 in central"));
    }

    @Test
    void testResolveParentThrowsUnresolvableModelExceptionWhenNoMatchingVersionFound() throws Exception {
        final Parent parent = new Parent();

            PluginDescriptorBuilder.StreamSupplier is, Plugin plugin, String descriptorLocation)
            throws PluginDescriptorParsingException {
        try {
            return builder.build(is, descriptorLocation);
        } catch (PlexusConfigurationException e) {
            throw new PluginDescriptorParsingException(plugin, descriptorLocation, e);
        }
    }

        return new DefaultModelXmlFactory().fromXmlString(xml);
    }

    /**
     * Simply converts the given content to an xml string.
     *
     * @param content the object to convert
     * @return the xml string representation
     * @throws XmlWriterException if an error occurs during the transformation
     * @see #fromXmlString(String)
     */

    public static Model fromXml(@Nonnull String xml) throws XmlReaderException {
        return new DefaultModelXmlFactory().fromXmlString(xml);
    }

    /**
     * Simply converts the given content to an xml string.
     *
     * @param content the object to convert
     * @return the xml string representation
     * @throws XmlWriterException if an error occurs during the transformation
     * @see #fromXmlString(String)

            PhaseRecorder phaseRecorder)
            throws LifecycleExecutionException {
        execute(session, mojoExecution, dependencyContext);
        phaseRecorder.observeExecution(mojoExecution);
    }

    private void execute(MavenSession session, MojoExecution mojoExecution, DependencyContext dependencyContext)
            throws LifecycleExecutionException {

     * One is for releases, the other for snapshots.
     * ]]></usage>
     * </expression>
     * <expressions>
     *
     * @throws IOException
     * @throws XmlPullParserException
     */
    private static Map<String, Expression> parseExpressionDocumentation(InputStream docStream)
            throws IOException, XmlPullParserException {
        ParamdocXpp3Reader paramdocReader = new ParamdocXpp3Reader();

    }

    public ModelBuilderResult build(final ModelBuilderRequest request, final ModelBuilderResult result)
            throws ModelBuilderException {
        return build(request, result, new LinkedHashSet<>());
    }

    public Model buildRawModel(ModelBuilderRequest request) throws ModelBuilderException {
        request = fillRequestDefaults(request);

            throw new UnsupportedOperationException();
        }

        @Override
        public Model getRawModel(Path from, Path p) {
            throw new UnsupportedOperationException();
        }

        @Override
        public Path locate(Path path) {
            throw new UnsupportedOperationException();
        }
    }

    @Override
    public PersistedToolchains read(@Nonnull XmlReaderRequest request) throws XmlReaderException {
        Objects.requireNonNull(request, "request");
        Reader reader = request.getReader();
        InputStream inputStream = request.getInputStream();
        if (reader == null && inputStream == null) {
            throw new IllegalArgumentException("reader or inputStream must be non null");
        }
        try {

    @Override
    public PersistedToolchains read(@Nonnull XmlReaderRequest request) throws XmlReaderException {
        Objects.requireNonNull(request, "request");
        Reader reader = request.getReader();
        InputStream inputStream = request.getInputStream();
        if (reader == null && inputStream == null) {
            throw new IllegalArgumentException("reader or inputStream must be non null");
        }
        try {