pluginArtifactsCache.put(cacheKey, e);
                pluginArtifactsCache.register(project, cacheKey, recordArtifacts);
                throw new PluginManagerException(plugin, e.getMessage(), e);
            }
        }
        pluginArtifactsCache.register(project, cacheKey, recordArtifacts);

        // create and cache extensions realms

     */
    @Nonnull
    Session withRemoteRepositories(@Nonnull List<RemoteRepository> repositories);

    /**
     * Register the given listener which will receive all events.
     *
     * @param listener the listener to register
     * @throws NullPointerException if {@code listener} is null
     */
    void registerListener(@Nonnull Listener listener);

    /**

    // the test in question and vice versa. A little Eclipse plugin would do the trick.
    public void testThatExecutionsWithoutIdsAreMergedAndTheChildWins() throws Exception {
        PomTestWrapper tester = buildPom("micromailer");
        assertModelEquals(tester, "child-descriptor", "build/plugins[1]/executions[1]/goals[1]");
    }

    /*MNG-
    public void testDependencyScope()
        throws Exception
    {