Thread.sleep(10);
                                } catch (InterruptedException ie) {
                                    // ignore
                                }
                                file.delete(); // if this fails, forget about it
                            }
                        }
                    } catch (TransferFailedException e) {
                        getLogger()

        }
        GetTask getTask = new GetTask(source);
        getTask.setDataFile(target.toFile());
        try {
            transporter.get(getTask);
            return true;
        } catch (Exception e) {
            if (Transporter.ERROR_NOT_FOUND != transporter.classify(e)) {
                throw new RuntimeException(e);
            }
            return false;
        }
    }

    @Override

        try {
            pluginRepositories = projectBuildingHelper.createArtifactRepositories(
                    model.getPluginRepositories(), pluginRepositories, projectBuildingRequest);
        } catch (Exception e) {
            event.problems()
                    .add(
                            BuilderProblem.Severity.ERROR,
                            ModelProblem.Version.BASE,

                    plugin, request.getRepositories(), request.getRepositorySession());
        } catch (PluginResolutionException e) {
            logger.debug("Ignoring unresolvable plugin version {}", version, e);
            return false;
        } catch (Exception e) {
            // ignore for now and delay failure to higher level processing
            return true;
        }

                        repositorySystem.injectAuthentication(request.getRepositorySession(), Arrays.asList(repo));
                        repos.add(repo);
                    } catch (InvalidRepositoryException e) {
                        throw new ProjectBuildingException("", "Invalid remote repository " + repository, e);
                    }
                    normalized = true;

                                duplicateArtifactIds);
                        service.submit(cb);
                    }
                }
            } catch (InterruptedException e) {
                rootSession.getResult().addException(e);
                break;
            } catch (ExecutionException e) {
                // TODO MNG-5766 changes likely made this redundant
                rootSession.getResult().addException(e);

                    session.resolveArtifact(session.createArtifactCoordinate(groupId, artifactId, version, "pom"));
            return ModelSource.fromPath(resolved.getValue(), groupId + ":" + artifactId + ":" + version);
        } catch (ArtifactResolverException e) {
            throw new ModelResolverException(
                    e.getMessage() + " (remote repositories: "
                            + session.getRemoteRepositories().stream()

                versionResult = versionResolver.resolveVersion(session, versionRequest);

                pomArtifact = pomArtifact.setVersion(versionResult.getVersion());
            } catch (VersionResolutionException e) {
                result.addException(e);
                throw new ArtifactDescriptorException(result);
            }

        try {
            collect.setTrace(RequestTrace.newChild(trace, depRequest));
            node = repoSystem.collectDependencies(session, collect).getRoot();
            result.setDependencyGraph(node);
        } catch (DependencyCollectionException e) {
            result.setDependencyGraph(e.getResult().getRoot());
            result.setCollectionErrors(e.getResult().getExceptions());

            throw new DependencyResolutionException(

                    new InstallRequest().setArtifacts(session.toArtifacts(request.getArtifacts()));

            InstallResult result = repositorySystem.install(session.getSession(), installRequest);
        } catch (InstallationException e) {
            throw new ArtifactInstallerException(e.getMessage(), e);
        }
    }