session.getRepositorySystem().collectDependencies(systemSession, collectRequest);
            return new DefaultDependencyResolverResult(
                    null, result.getExceptions(), session.getNode(result.getRoot(), request.getVerbose()), 0);
        } catch (DependencyCollectionException e) {
            throw new DependencyResolverException("Unable to collect dependencies", e);
        }
    }

            }
        } catch (ArtifactDescriptorException e) {
            throw new PluginResolutionException(
                    plugin, e.getResult().getExceptions(), logger.isDebugEnabled() ? e : null);
        }

        try {
            ArtifactRequest request = new ArtifactRequest(pluginArtifact, repositories, REPOSITORY_CONTEXT);
            request.setTrace(trace);

            result.setDependencyGraph(node);
        } catch (DependencyCollectionException e) {
            result.setDependencyGraph(e.getResult().getRoot());
            result.setCollectionErrors(e.getResult().getExceptions());

            throw new DependencyResolutionException(
                    result,
                    "Could not collect dependencies for project " + project.getId(),

    /**
     * Gets the exceptions that occurred while building the dependency graph.
     *
     * @return the exceptions that occurred, never {@code null}
     */
    @Nonnull
    List<Exception> getExceptions();

    /**
     * Gets the root node of the dependency graph.
     *
     * @return the root node of the dependency graph or {@code null} if none
     */
    @Nullable
    Node getRoot();

    /**

                return entry.getValue();
            }
        }
        return null;
    }

    @Override
    public List<Exception> getExceptions() {
        return exceptions;
    }

    @Override
    public Node getRoot() {
        return root;
    }

    @Override
    public List<Node> getNodes() {
        return nodes;

        logger.debug("Installing {} to {}", event.getMetadata(), event.getFile());
    }

    @Override
    public void metadataResolved(RepositoryEvent event) {
        Exception e = event.getException();
        if (e != null) {
            if (e instanceof MetadataNotFoundException) {
                logger.debug(e.getMessage());
            } else if (logger.isDebugEnabled()) {

                            return buffer.toString();
                        }

                        @Override
                        public Exception getException() {
                            return problem.getException();
                        }

                        @Override
                        public String getMessage() {
                            return problem.getMessage();

            } catch (ModelBuilderException e) {
                for (ModelProblem problem : e.getResult().getProblems()) {
                    if (problem.getException() instanceof ModelResolverException) {
                        result.addException(problem.getException());
                        throw new ArtifactDescriptorException(result);
                    }
                }

    public void transferCorrupted(TransferEvent event) throws TransferCancelledException {
        TransferResource resource = event.getResource();
        out.warn(
                "{} from {} for {}{}",
                event.getException().getMessage(),
                resource.getRepositoryId(),
                resource.getRepositoryUrl(),
                resource.getResourceName());
    }

    @Override

    public void transferCorrupted(TransferEvent event) throws TransferCancelledException {
        TransferResource resource = event.getResource();
        // TODO This needs to be colorized
        out.println("[WARNING] " + event.getException().getMessage() + " from " + resource.getRepositoryId() + " for "
                + resource.getRepositoryUrl() + resource.getResourceName());
    }

    @Override
    public void transferSucceeded(TransferEvent event) {