/**
     * Retrieves the local repository associated with this session.
     *
     * @return the local repository instance
     */
    @Nonnull
    LocalRepository getLocalRepository();

    /**
     * Retrieves a list of remote repositories associated with this session.
     *
     * @return a list of remote repositories
     */
    @Nonnull

        }

        ResolutionGroup cached = cache.get(
                artifact,
                request.isResolveManagedVersions(),
                request.getLocalRepository(),
                request.getRemoteRepositories());

        if (cached != null
                // if the POM has no file, we cached a missing artifact, only return the cached data if no update forced

                ArtifactRepository repository = metadataResult.getRequest().getRepository();
                if (repository == null) {
                    repository = session.getLocalRepository();
                }

                Versioning v = readVersions(session, trace, metadataResult.getMetadata(), repository, result);
                merge(artifact, infos, v, repository);
            }

    }

    @Override
    public ResolutionGroup retrieve(MetadataResolutionRequest request) throws ArtifactMetadataRetrievalException {
        return retrieve(request.getArtifact(), request.getLocalRepository(), request.getRemoteRepositories());
    }

                return retrieve(request.getArtifact(), request.getLocalRepository(), request.getRemoteRepositories());
            }

            @Override
            public List<ArtifactVersion> retrieveAvailableVersions(MetadataResolutionRequest request) {
                return retrieveAvailableVersions(
                        request.getArtifact(), request.getLocalRepository(), request.getRemoteRepositories());
            }
        };

    }

    @Override
    public ResolutionGroup retrieve(MetadataResolutionRequest request) {
        return retrieve(request.getArtifact(), request.getLocalRepository(), request.getRemoteRepositories());
    }

            try {
                String version = resolveVersion(artifact, request);
                artifact.updateVersion(version, request.getLocalRepository());
            } catch (RepositoryMetadataResolutionException e) {
                throw new ArtifactResolutionException(e.getMessage(), artifact, e);
            }
        }
    }

    @Override

                .setResolveTransitively(true)
                .setCollectionFilter(collectionScopeFilter)
                .setResolutionFilter(resolutionScopeFilter)
                .setLocalRepository(session.getLocalRepository())
                .setOffline(session.isOffline())
                .setForceUpdate(session.getRequest().isUpdateSnapshots());
        request.setServers(session.getRequest().getServers());

        request.setInteractiveMode(settings.isInteractiveMode());

        request.setPluginGroups(settings.getPluginGroups());

        request.setLocalRepositoryPath(settings.getLocalRepository());

        for (Server server : settings.getServers()) {
            request.addServer(server);
        }

        //  <proxies>
        //    <proxy>
        //      <active>true</active>

        // for the special case of a drive-relative Windows path, make sure it's absolute to save plugins from trouble
        String localRepository = userSettings.getLocalRepository();
        if (localRepository != null && !localRepository.isEmpty()) {
            File file = new File(localRepository);
            if (!file.isAbsolute() && file.getPath().startsWith(File.separator)) {