dir, event.getSession().getLocalRepositoryManager().getPathForLocalArtifact(event.getArtifact()));
            trackingDir = dir.getParentFile().toPath().resolve(".tracking");
        } else {
            trackingDir = event.getFile().getParentFile().toPath().resolve(".tracking");
        }

        String baseName;
        String ext = missing ? ".miss" : ".dep";
        Path trackingFile = null;

            // Not using File#lastModified() to avoid a Linux JDK8 milliseconds precision bug: JDK-8177809.
            long artifactLastModified =
                    Files.getLastModifiedTime(packagedArtifactFile.toPath()).toMillis();

            if (session.getProjectBuildingRequest().getBuildStartTime() != null) {
                long buildStartTime =

        RepositorySystemSession rss = new MavenSessionBuilderSupplier(repositorySystem)
                .get()
                .withLocalRepositoryBaseDirectories(new File("target").toPath())
                .build();
        DefaultMavenExecutionRequest mer = new DefaultMavenExecutionRequest();
        DefaultMavenExecutionResult meres = new DefaultMavenExecutionResult();

        File psOutFile = new File(rootProjectDir, timestamp + ".psoutput");

        try {
            Files.write(psOutFile.toPath(), psOutput);
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    private static void cleanPsOutputAndThreaddumpFilesFromPreviousRun(File rootProjectDir) {

                if (pluginXml.isFile()) {
                    pluginDescriptor = parsePluginDescriptor(
                            () -> Files.newInputStream(pluginXml.toPath()), plugin, pluginXml.getAbsolutePath());
                }
            }

            if (pluginDescriptor == null) {

                    public Object getValue(String expression) {
                        if (projectDir != null && "baseUri".equals(expression)) {
                            return projectDir.getAbsoluteFile().toPath().toUri().toASCIIString();
                        }
                        return null;
                    }
                },
                PROJECT_PREFIXES,
                false);

            File remoteFile = new File(remoteRepo.getBasedir(), remoteRepo.pathOf(artifact));

            Files.createDirectories(localFile.toPath().getParent());
            Files.copy(remoteFile.toPath(), localFile.toPath());
        }

        artifact.setResolved(true);
    }

    public void retrieve(
            ArtifactRepository repository,
            File destination,

        String parentContent = new String(Files.readAllBytes(parent.toPath()), StandardCharsets.UTF_8);
        parentContent = parentContent.replace(
                "<packaging>pom</packaging>",
                "<packaging>pom</packaging><properties><addedProperty>addedValue</addedProperty></properties>");
        Files.write(parent.toPath(), parentContent.getBytes(StandardCharsets.UTF_8));
        // re-build pom with modified parent

        if (!baseDir.exists()) {
            return 0;
        }
        try {
            final FilePurgeVisitor visitor = new FilePurgeVisitor(baseDir.toPath(), imageExtention, expiry);
            Files.walkFileTree(baseDir.toPath(), visitor);
            return visitor.getCount();
        } catch (final Exception e) {
            throw new JobProcessingException(e);
        }
    }

                            final File baseJspFile = getDesignJspFile("/WEB-INF/view/" + e.getValue());
                            try {
                                final Path jspPath = jspFile.toPath();
                                Files.copy(baseJspFile.toPath(), jspPath);
                                fileList.add(jspPath);
                            } catch (final IOException ex) {