}
    }

    private Model assembleInheritance(
            List<Model> lineage, ModelBuilderRequest request, ModelProblemCollector problems) {
        Model parent = lineage.get(lineage.size() - 1);
        for (int i = lineage.size() - 2; i >= 0; i--) {
            Model child = lineage.get(i);
            parent = inheritanceAssembler.assembleModelInheritance(child, parent, request, problems);
        }
        return parent;

    }

    private List<Artifact> toMavenArtifacts(DependencyResult dependencyResult) {
        List<Artifact> artifacts =
                new ArrayList<>(dependencyResult.getArtifactResults().size());
        dependencyResult.getArtifactResults().stream()
                .filter(ArtifactResult::isResolved)
                .forEach(a -> artifacts.add(RepositoryUtils.toArtifact(a.getArtifact())));

                        }
                    } else {
                        pending.add(element);
                    }
                }

                List<Plugin> result = new ArrayList<>(src.size() + tgt.size());
                for (Map.Entry<Object, Plugin> entry : master.entrySet()) {
                    List<Plugin> pre = predecessors.get(entry.getKey());
                    if (pre != null) {

            List<Plugin> src = source.getPlugins();
            if (!src.isEmpty()) {
                List<Plugin> tgt = target.getPlugins();

                Map<Object, Plugin> merged = new LinkedHashMap<>((src.size() + tgt.size()) * 2);

                for (Plugin element : tgt) {
                    Object key = getPluginKey().apply(element);
                    merged.put(key, element);
                }

                            modified = true;
                        }
                    }
                }

                if (modified) {
                    List<Dependency> newDeps = new ArrayList<>(dependencies.size());
                    for (Dependency dep : model.getDependencies()) {
                        Object key = getDependencyKey().apply(dep);
                        Dependency dependency = dependencies.get(key);

                        groupId,
                        artifactId,
                        version);
            }
            String newVersion = versions.get(versions.size() - 1).asString();
            if (!version.equals(newVersion)) {
                resolvedVersion.accept(newVersion);
            }

            Map.Entry<org.apache.maven.api.Artifact, Path> resolved =

                // we are already visiting this vertex, this mean we have a cycle
                int pos = cycle.lastIndexOf(v.label);
                List<String> ret = cycle.subList(pos, cycle.size());
                ret.add(v.label);
                return ret;
            }
        }
        return null;
    }

    static class Vertex {
        final String label;

            Path tempPath = null;
            try {
                tempPath = Files.createTempFile("transport-get", "tmp");
                if (get(relativeSource, tempPath)) {
                    // TODO: check file size and prevent OOM?
                    return Optional.of(Files.readAllBytes(tempPath));
                }
                return Optional.empty();
            } finally {
                if (tempPath != null) {

        }

        assertNotNull(testPlugin);

        List<PluginExecution> executions = testPlugin.getExecutions();

        assertEquals(1, executions.size());
    }

    }

    @Override
    public Stream<Lifecycle> stream() {
        return values.values().stream();
    }

    static <T> List<T> concat(List<T> l, T t) {
        List<T> nl = new ArrayList<>(l.size() + 1);
        nl.addAll(l);
        nl.add(t);
        return nl;
    }

    @Override
    public List<String> computePhases(Lifecycle lifecycle) {