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;

    private Object distTaskOutput(TaskProvider<Task> buildDistTask) {
        return new Callable<File>() {
            @Override
            public File call() {
                return buildDistTask.get().getOutputs().getFiles().getSingleFile();
            }

            @Override
            public String toString() {
                return call().getAbsolutePath();
            }
        };
    }

        Mall<Outdoor>.Retailer<Electronics> retailer) {
      return isSubtype(retailer);
    }

    @TestSubtype(suppressGetSupertype = true, suppressGetSubtype = true)
    public Mall<Outdoor>.Shop<? extends Electronics> innerTypeIsSubtype_supertypeWithWildcard(
        Mall<Outdoor>.Retailer<Electronics> retailer) {
      return isSubtype(retailer);
    }

        Mall<Outdoor>.Retailer<Electronics> retailer) {
      return isSubtype(retailer);
    }

    @TestSubtype(suppressGetSupertype = true, suppressGetSubtype = true)
    public Mall<Outdoor>.Shop<? extends Electronics> innerTypeIsSubtype_supertypeWithWildcard(
        Mall<Outdoor>.Retailer<Electronics> retailer) {
      return isSubtype(retailer);
    }

    }

    @Test
    public void testMultipleGetFile() throws IOException {
        // Calling getFile() multiple times should return the same file
        ContentOutputStream cos = new ContentOutputStream(5, Curl.tmpDir);
        cos.write(new byte[] { 0, 1, 2, 3, 4, 5 });
        File file1 = cos.getFile();
        File file2 = cos.getFile();
        assertEquals(file1.getAbsolutePath(), file2.getAbsolutePath());

    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) {

        wagonManager.getArtifact(artifact, repo, null, false);

        assertTrue(artifact.getFile().exists());
        assertEquals("expected", FileUtils.fileRead(artifact.getFile(), "UTF-8"));
    }

    private Artifact createTestPomArtifact(String directory) throws IOException {
        File testData = getTestFile(directory);

    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() {