} else {
            return cache.computeIfAbsent(groupId, artifactId, version, tag, s);
        }
    }

    private static <T> T cache(ModelCache cache, Source source, String tag, Callable<T> supplier) {
        Supplier<T> s = asSupplier(supplier);
        if (cache == null) {
            return s.get();
        } else {
            return cache.computeIfAbsent(source, tag, s);
        }
    }

                if (mgmt != null) {
                    for (Plugin plugin : mgmt.getPlugins()) {
                        String key = plugin.getKey();
                        managedVersions.computeIfAbsent(key, k -> plugin.getVersion());
                    }
                }
            }
        }

        for (String key : versions.keySet()) {

        return dependencyStateCache.computeIfAbsent(md, this::createDependencyState);
    }

    private void createAndLinkEdgeState(DependencyState dependencyState, Collection<EdgeState> discoveredEdges, ExcludeSpec resolutionFilter, boolean deferSelection) {
        EdgeState dependencyEdge = edgesCache.computeIfAbsent(dependencyState, ds -> new EdgeState(this, ds, resolutionFilter, resolveState));

      synchronized (mutex) {
        return delegate().replace(key, value);
      }
    }

    @Override
    public V computeIfAbsent(K key, Function<? super K, ? extends V> mappingFunction) {
      synchronized (mutex) {
        return delegate().computeIfAbsent(key, mappingFunction);
      }
    }

    @Override
    @CheckForNull

    }
    try {
      unmod.replace(3, "four");
      fail("UnsupportedOperationException expected");
    } catch (UnsupportedOperationException expected) {
    }
    try {
      unmod.computeIfAbsent(3, (k) -> k + "three");
      fail("UnsupportedOperationException expected");
    } catch (UnsupportedOperationException expected) {
    }
    try {
      unmod.computeIfPresent(4, (k, v) -> v);

        String referenceKey = "";

        if (summary.getReference() != null && !summary.getReference().isEmpty()) {
            referenceKey =
                    references.computeIfAbsent(summary.getReference(), k -> "[Help " + (references.size() + 1) + "]");
        }

        String msg = summary.getMessage();

        if (referenceKey != null && !referenceKey.isEmpty()) {

    public void addIndexConfig(final String path) {
        indexConfigList.add(path);
    }

    public void addConfigFile(final String index, final String path) {
        configListMap.computeIfAbsent(index, k -> new ArrayList<>()).add(path);
    }

    public void setSettings(final Map<String, String> settings) {
        this.settings = settings;
    }

    public String getStatus() {