* If no module is found, or if module information cannot be extracted, then this constructor
     * builds an empty map.
     *
     * <p>If the {@code resolve} parameter value is {@code false}, then some or all map values may
     * be null instead of the actual module name. This option can avoid the cost of reading module
     * descriptors when only the modules existence needs to be verified.</p>
     *
     * <p><b>Algorithm:</b>

repository. During development in an IDE we would need layered resolution approach that would allow resolution from the workspace, then the local Maven repository and then from any number of remote Maven repositories. During development from the command line we would need a layered resolution approach that would allow resolution from the local Maven repository and then from any number of remote Maven repositories. In production the resolution for the dependencies could also be layered but would depend...

     *   <li>If {@link #MODULES} path type is also set, then the dependency can be placed either on the
     *       class-path or on the module-path, but only one of those. The choice is up to the plugin,
     *       possibly using heuristic rules (Maven 3 behavior).</li>
     *   <li>If a {@link #patchModule(String)} is also set and the main JAR file is placed on the module-path,

        assertEquals("0.1", pluginDescriptor.getVersion());
    }

    // -----------------------------------------------------------------------------------------------
    // Tests which exercise the lifecycle executor when it is dealing with individual goals.
    // -----------------------------------------------------------------------------------------------

     */
    private final Map<Dependency, Path> dependencies;

    /**
     * Information about modules in the main output. This field is initially null and is set to a non-null
     * value when the output directories have been set, or when it is too late for setting them.
     */
    private PathModularization outputModules;

    /**
     * Creates an initially empty result. Callers should add path elements by calls

    public ResolutionGroup retrieve(MetadataResolutionRequest request) throws ArtifactMetadataRetrievalException {
        Artifact artifact = request.getArtifact();

        //
        // If we have a system scoped artifact then we do not want any searching in local or remote repositories
        // and we want artifact resolution to only return the system scoped artifact itself.
        //

   | This will determine whether maven prompts you when it needs input. If set to false,
   | maven will use a sensible default value, perhaps based on some other setting, for
   | the parameter in question.
   |
   | Default: true
  <interactiveMode>true</interactiveMode>
  -->

  <!-- offline
   | Determines whether maven should attempt to connect to the network when executing a build.

        // Here, we need to determine which policy to use. Release updateInterval will be used when
        // the metadata refers to a release artifact or meta-version, and snapshot updateInterval will be used when
        // it refers to a snapshot artifact or meta-version.
        // NOTE: Release metadata includes version information about artifacts that have been released, to allow

allows a copy of commons-logging.jar to be shared in a multiple class loader environment (such as a servlet container), but still allow each web application to provide its own LogFactory implementation, if it so desires. An instance of this class will then be created, and cached per class loader. The Default LogFactory Implementation The Logging Package APIs include a default LogFactory implementation class ( org.apache.commons.logging.impl.LogFactoryImpl) that is selected if no other implementation...

        }
    }

    private String getMessage(String message, Throwable exception) {
        String fullMessage = (message != null) ? message : "";

        // To break out of possible endless loop when getCause returns "this"
        for (Throwable t = exception; t != null && t != t.getCause(); t = t.getCause()) {
            String exceptionMessage = t.getMessage();