if (cache.containsKey(key)) {
            throw new IllegalStateException("Duplicate artifact resolution result for project " + key);
        }
    }

    @Override
    public void flush() {
        cache.clear();
    }

    @Override
    public void register(MavenProject project, Key cacheKey, CacheRecord record) {
        // default cache does not track record usage
    }

    private Map<Key, PluginDescriptor> descriptors = new ConcurrentHashMap<>(128);
    private Map<Key, Key> keys = new ConcurrentHashMap<>();

    public void flush() {
        descriptors.clear();
    }

    public Key createKey(Plugin plugin, List<RemoteRepository> repositories, RepositorySystemSession session) {

final int _mask; private final Object[] _keys; private final Object[] _values; public void CachedMap(); public void CachedMap(int); public void CachedMap(int, java.util.Map); public int getCacheSize(); public java.util.Map getBackingMap(); public void flush(); public Object get(Object); private Object getCacheMissed(Object, int); public Object put(Object, Object); public Object remove(Object); public boolean containsKey(Object); public int size(); public boolean isEmpty(); public boolean containsValue(Object);...

    public void addLicense(License license) {
        getModel().addLicense(license);
    }

    public void setArtifacts(Set<Artifact> artifacts) {
        this.artifacts = artifacts;

        // flush the calculated artifactMap
        artifactMap = null;
    }

    /**
     * All dependencies that this project has, including transitive ones. Contents are lazily populated, so depending on