Java Utililty Methods File Path Delete

if (null == path || !path.exists()) {
    return false;
boolean delete = false;
if (path.isDirectory()) {
    File[] files = path.listFiles();
    if (null != files && files.length > 0) {
        for (File file : files) {
...

if (!path.exists())
    return false;
boolean ret = true;
if (path.isDirectory()) {
    for (File f : path.listFiles()) {
        ret = ret && delete(f);
return ret && path.delete();

if (path.exists()) {
    if (path.isDirectory()) {
        File files[] = path.listFiles();
        for (File file : files) {
            delete(file);
        path.delete();
    } else {
...

List<String> excludedPaths = Arrays.asList(exclude);
File[] files = path.listFiles();
if (files != null) {
    for (File file : files) {
        if (!excludedPaths.contains(file.getName())) {
            if (file.isDirectory()) {
                delete(file);
            file.delete();

final String[] files = path.list();
String parentPath = path.getPath();
for (final String name : files) {
    final File file = new File(parentPath, name);
    if (file.isDirectory()) {
        delete(file);
    file.delete();
...

File file = new File(fileNameWithFullPath);
return file.delete();

File file = new File(filePath);
return delete(file);

boolean result = new File(filePath).delete();
if (!result) {
    throw new IOException("Delete " + filePath + " failed!");

File file = new File(filePath);
return file.delete();

return delete(new File(filePath));