Files.delete

File file = new File("D:\\file\\projects\\img-comparison-demo\\target\\generated-sources");
if (file.exists()) {
    try {
        boolean delete = file.delete();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

try {
    boolean delete = Files.deleteIfExists(Paths.get("D:\\file\\projects\\img-comparison-demo\\target\\generated-sources"));
} catch (IOException e) {
    e.printStackTrace();
}