Java Utililty Methods Properties Load from File

final Map<String, Properties> locs = new HashMap<>();
final Pattern pattern = Pattern.compile(Pattern.quote(loc) + "(|_[a-z]{2}-[A-Z]{2})\\.properties");
final Enumeration<? extends ZipEntry> en = file.entries();
while (en.hasMoreElements()) {
    final ZipEntry ze = en.nextElement();
    final Matcher m = pattern.matcher(ze.getName());
    if (m.matches()) {
        final String locale = makeLocale(m.group(1));
...

FileInputStream filecontent = new FileInputStream(new File(fileName));
Properties locatorfile = new Properties();
locatorfile.load(filecontent);
return locatorfile;

try {
    String osName = System.getProperty("os.name").toLowerCase();
    boolean isMacOs = osName.startsWith("mac os x");
    boolean isLinuxOs = osName.startsWith("linux");
    if (isMacOs) {
        System.setProperty("java.library.path", System.getProperty("java.library.path") + ";"
                + new File("native/macosx").getAbsolutePath());
        System.setProperty("org.lwjgl.librarypath", new File("native/macosx").getAbsolutePath());
...

ZipFile jarFile = null;
InputStream manifestStream = null;
try {
    String extension = new Path(bundleLocation.getName()).getFileExtension();
    bundleLocation = new File(bundleLocation.getAbsolutePath());
    if (extension != null && (extension.equals("jar") || extension.equals("jar!")) 
            && bundleLocation.isFile()) {
        jarFile = new ZipFile(bundleLocation, ZipFile.OPEN_READ);
...

Properties meta = new Properties();
File metaFile = new File(".meta");
if (metaFile.exists() && metaFile.isFile() && metaFile.canRead()) {
    FileInputStream fis = null;
    try {
        fis = new FileInputStream(metaFile);
        meta.load(fis);
    } catch (Exception e) {
...

MimeTypes.clear();
MimeTypes.load(inputStream);

String[] libs = { "gdal", "gdalconstjni", "gdaljni", "ogrjni", "osrjni" };
String platform = getPlatformPath("");
for (String name : libs) {
    StringBuilder filename = new StringBuilder();
    if (platform.contains("win")) {
        filename.append(name);
        if (name.equals("gdal")) {
            filename.append("19");
...

try {
    return loadProperties(aClass, aFileName, aClass.getResourceAsStream(aFileName));
} catch (NullPointerException e) {
    throw new RuntimeException(new FileNotFoundException(aClass.getPackage() + "." + aFileName));

String osFamily = getOsFamily();
return osFamily + "." + System.getProperty("os.arch");

Properties p = new Properties();
p.load(new FileInputStream(fileName));
return p.getProperty(param, defValue);