assertNotNull(resolved);
        assertNotNull(resolved.getKey());
        assertNotNull(resolved.getValue());
        Optional<Path> op = session.getArtifactPath(resolved.getKey());
        assertTrue(op.isPresent());
        assertEquals(resolved.getValue(), op.get());
    }

    @Test
    void testBuildProject() {

        Map.Entry<Artifact, Path> res = session.resolveArtifact(coord);
        assertNotNull(res);
        assertNotNull(res.getValue());
        assertTrue(Files.exists(res.getValue()));

        Node node = session.collectDependencies(session.createDependencyCoordinate(coord));
        assertNotNull(node);
        assertEquals(8, node.getChildren().size());
    }

java.util.Properties envars; public void EnvarBasedValueSourc() throws java.io.IOException; public Object getValue(String); } org/codehaus/plexus/util/interpolation/MapBasedValueSource.class package org.codehaus.plexus.util.interpolation; public synchronized class MapBasedValueSource implements ValueSource { private final java.util.Map values; public void MapBasedValueSource(java.util.Map); public Object getValue(String); } org/codehaus/plexus/util/interpolation/ObjectBasedValueSour.class package org.codeh...

                        for (PlexusConfiguration property : properties) {
                            headers.put(
                                    property.getChild("name").getValue(),
                                    property.getChild("value").getValue());
                        }
                    }
                }

                PlexusConfiguration connectTimeoutXml = config.getChild("connectTimeout", false);

            Object value = null;

            PlexusConfiguration config = configuration.getChild(parameter.getName(), false);
            if (config != null) {
                String expression = config.getValue(null);

                try {
                    value = expressionEvaluator.evaluate(expression);

                    if (value == null) {

            super(session, repositorySystem, repositories, resolverRepositories, lookup);
            systemProperties = System.getenv().entrySet().stream()
                    .collect(Collectors.toMap(e -> "env." + e.getKey(), e -> e.getValue()));
        }

        @Override
        protected Session newSession(RepositorySystemSession session, List<RemoteRepository> repositories) {

        if (properties != null && !properties.isEmpty()) {
            return properties.entrySet().stream()
                    .collect(Collectors.toMap(e -> String.valueOf(e.getKey()), e -> String.valueOf(e.getValue())));

        } else {
            return null;
        }
    }

    @SuppressWarnings("unchecked")
    static <T extends Throwable> void uncheckedThrow(Throwable t) throws T {

            Map.Entry<org.apache.maven.api.Artifact, Path> resolved =
                    session.resolveArtifact(session.createArtifactCoordinate(groupId, artifactId, newVersion, "pom"));
            return ModelSource.fromPath(resolved.getValue(), groupId + ":" + artifactId + ":" + newVersion);
        } catch (VersionRangeResolverException | ArtifactResolverException e) {
            throw new ModelResolverException(