String existingContent = "";

        // Try to read existing content
        try {
            FileObject inputFile = processingEnv.getFiler().getResource(StandardLocation.CLASS_OUTPUT, "", path);
            try (BufferedReader reader = new BufferedReader(new InputStreamReader(inputFile.openInputStream()))) {
                String line;

    public URI getLocationURI() {
        return getFile().toURI();
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }

        if (!(obj instanceof FileModelSource)) {
            return false;
        }
        FileModelSource other = (FileModelSource) obj;
        return getFile().equals(other.getFile());
    }

    @Override

    @Override
    public void artifactInstalling(RepositoryEvent event) {
        logger.info("Installing {} to {}", event.getArtifact().getFile(), event.getFile());
    }

    @Override
    public void metadataInstalling(RepositoryEvent event) {
        logger.debug("Installing {} to {}", event.getMetadata(), event.getFile());
    }

    @Override
    public void metadataResolved(RepositoryEvent event) {

    public void artifactInstalled(RepositoryEvent event) {
        println("artifactInstalled", event.getArtifact() + " to " + event.getFile());
    }

    @Override
    public void artifactInstalling(RepositoryEvent event) {
        println("artifactInstalling", event.getArtifact() + " to " + event.getFile());
    }

    @Override
    public void artifactResolved(RepositoryEvent event) {

    private File target;

    private List<String> additionalLines = new ArrayList<>();

    public void setFiles(FileTree files) {
        this.files = files;
    }

    @InputFiles
    public FileTree getFiles() {
        return files;
    }

    public void setHeaderLine(String headerLine) {
        this.headerLine = headerLine;
    }

    @Input
    @Optional
    public String getHeaderLine() {

    @TaskAction
    public void checkInvalidPermissions() throws IOException {
        if (Os.isFamily(Os.FAMILY_WINDOWS)) {
            throw new StopExecutionException();
        }
        List<String> failures = getFiles().getFiles()
            .stream()
            .filter(FilePermissionsTask::isExecutableFile)
            .map(file -> "Source file is executable: " + file)
            .collect(Collectors.toList());

                .get(1)
                .getActivation()
                .getFile()
                .getExists();

        assertEquals(originalExists, resultExists);
        assertTrue(result.getEffectiveModel()
                .getProfiles()
                .get(1)
                .getActivation()
                .getFile()
                .getExists()
                .contains(BASE_DIR));
    }

        extension.getClasspath().from(runtimeClasspath);
        extension.getSourceRoots().from(sourcesPath.getIncoming().artifactView(v -> v.lenient(true)).getFiles());
        extension.getDocumentedSource().from(sourcesPath.getIncoming().artifactView(v -> v.lenient(true)).getFiles().getAsFileTree().matching(f -> {
            f.include(PublicApi.INSTANCE.getIncludes());
            // Filter out any non-public APIs

      assertTrue(ByteSource.wrap(data).slice(0, chunk1).contentEquals(source));
    }
    File file = out.getFile();
    assertThat(file).isNull();

    // Write data to go over the threshold
    if (chunk2 > 0) {
      write(out, data, chunk1, chunk2, singleByte);
      file = out.getFile();
      assertEquals(dataSize, file.length());
      assertTrue(file.exists());

                visitedSymbolicLinks.add(details.getFile());
                final TarArchiveEntry entry = new TarArchiveEntry(details.getRelativePath().getPathString(), TarConstants.LF_SYMLINK);
                entry.setModTime(getModTime(details));
                entry.setMode(UnixStat.LINK_FLAG | details.getMode());
                try {
                    entry.setLinkName(Files.readSymbolicLink(details.getFile().toPath()).toString());