Java Utililty Methods Resource Load

return new File(theClass.getResource(fileName).getFile());

return new File(getResource(relativeResourceFilePathname).toURI());

File file = new File(resource);
if (file.exists())
    return file;
file = new File(getTestResourcesDir() + "/" + resource);
if (file.exists())
    return file;
String notSet = (getTestResourcesDir() == null
        ? " System property '" + SYSPROP_TEST_RESOURCES_DIRECTORY + "' not set."
...

return new File(ClassLoader.getSystemClassLoader().getResource(resourceName).toURI());

if (fromFile.exists() && fromFile.isFile()) {
    if (fromFile.getName().endsWith(".jar")) {
        try {
            JarFile jarFile = new JarFile(fromFile);
            InputStream returnMe = jarFile.getInputStream(jarFile.getJarEntry(insideFile));
            jarFile.close();
            return returnMe;
        } catch (IOException e) {
...

File dir = new File(packagePath);
if (!dir.exists() || !dir.isDirectory()) {
    return;
File[] dirfiles = dir.listFiles();
for (File file : dirfiles) {
    if (file.isDirectory()) {
        getResourceInDirPackage(packageName + "." + file.getName(), file.getAbsolutePath(), recursive,
...

ArrayList<String> als = new ArrayList<String>();
for (File f : fdir.listFiles()) {
    String fnm = f.getName();
    if (fnm.endsWith(extn)) {
        als.add(fnm.substring(0, fnm.length())); 
return als.toArray(new String[als.size()]);
...

Set<String> result = new HashSet<>();
if ("file".equals(pathUrl.getProtocol())) {
    for (String name : new File(pathUrl.toURI()).list()) {
        if (name.endsWith(suffix)) {
            result.add(prefix + "/" + name);
if ("jar".equals(pathUrl.getProtocol())) {
    String jarPath = pathUrl.getPath().substring(5, pathUrl.getPath().indexOf("!")); 
    JarFile jar = new JarFile(URLDecoder.decode(jarPath, "UTF-8"));
    for (Enumeration<JarEntry> entries = jar.entries(); entries.hasMoreElements();) {
        String name = entries.nextElement().getName();
        if (name.startsWith(prefix) && name.endsWith(suffix)) {
            result.add(name);
    jar.close();
return result;

if ('/' == File.separatorChar) {
    return pFileName;
return pFileName.replace(File.separatorChar, '/');

Set<String> resourceNames = new HashSet<String>();
String[] resArray = dir.list();
if (resArray != null) {
    for (int i = 0; i < resArray.length; i++) {
        if (new File(dir, resArray[i]).isDirectory())
            resArray[i] += '/';
    resourceNames.addAll(Arrays.asList(resArray));
...