eventSpy.onEvent(event);
            } catch (Exception | LinkageError e) {
                logError("notify", e, eventSpy);
            }
        }
    }

    public void close() {
        if (eventSpies.isEmpty()) {
            return;
        }
        for (EventSpy eventSpy : eventSpies) {
            try {
                eventSpy.close();
            } catch (Exception | LinkageError e) {

            Files.createDirectories(resumeProperties.getParent());
            try (Writer writer = Files.newBufferedWriter(resumeProperties)) {
                properties.store(writer, null);
            }
        } catch (IOException e) {
            String message = "Could not create " + RESUME_PROPERTIES_FILENAME + " file.";
            throw new BuildResumptionPersistenceException(message, e);
        }
    }

            if (version == null || version.isEmpty()) {
                version = "RELEASE";
            }
            versionRange = VersionRange.createFromVersionSpec(version);
        } catch (InvalidVersionSpecificationException e) {
            return null;
        }

        return artifactFactory.createPluginArtifact(plugin.getGroupId(), plugin.getArtifactId(), versionRange);
    }

                            InternalSession.from(session).getSession(),
                            ((DefaultRemoteRepository) repository).getRepository()));
        } catch (URISyntaxException e) {
            throw new TransportProviderException("Remote repository URL invalid", e);
        } catch (NoTransporterException e) {
            throw new TransportProviderException("Unsupported remote repository", e);
        }
    }

                            InternalSession.from(session).getSession(),
                            ((DefaultRemoteRepository) repository).getRepository()));
        } catch (URISyntaxException e) {
            throw new TransportProviderException("Remote repository URL invalid", e);
        } catch (NoTransporterException e) {
            throw new TransportProviderException("Unsupported remote repository", e);
        }
    }

            return cache.computeIfAbsent(key, k -> {
                try {
                    return supplier.load();
                } catch (PluginResolutionException | PluginContainerException e) {
                    throw new RuntimeException(e);
                }
            });
        } catch (RuntimeException e) {
            if (e.getCause() instanceof PluginResolutionException) {

        }

        try {
            return repositorySystem.createLocalRepository(new File(localRepositoryPath));
        } catch (Exception e) {
            throw new MavenExecutionRequestPopulationException("Cannot create local repository.", e);
        }
    }

    private void baseDirectory(MavenExecutionRequest request) {

            if (reader != null) {
                return xml.read(reader, request.isStrict(), source);
            } else {
                return xml.read(inputStream, request.isStrict(), source);
            }
        } catch (Exception e) {
            throw new XmlReaderException("Unable to read settings", e);
        }
    }

    @Override
    public void write(XmlWriterRequest<Settings> request) throws XmlWriterException {

            Artifact a = null;
            try {
                a = factory.createBuildArtifact("org.apache.maven", "h", "1.0", "jar");
                dependencies.add(a);
            } catch (Exception e) {
                throw new ArtifactMetadataRetrievalException("Error retrieving metadata", e, a);
            }
        }

        if ("i".equals(artifact.getArtifactId())) {
            Artifact a = null;

            if (reader != null) {
                return xml.read(reader, request.isStrict(), source);
            } else {
                return xml.read(inputStream, request.isStrict(), source);
            }
        } catch (Exception e) {
            throw new XmlReaderException("Unable to read settings: " + getMessage(e), getLocation(e), e);
        }
    }

    @Override