Java Utililty Methods Object Deserialize from File

Object o = null;
try {
    ObjectInputStream in = new ObjectInputStream(new FileInputStream(sFile));
    o = in.readObject();
    in.close();
} catch (ClassNotFoundException ex) {
    System.err.println(ex.getMessage());
} catch (IOException ex) {
...

InputStream file = new FileInputStream(f);
InputStream buffer = new BufferedInputStream(file);
ObjectInput input = new ObjectInputStream(buffer);
Object object = input.readObject();
input.close();
return object;

ObjectInputStream in = null;
try {
    in = new ObjectInputStream(new FileInputStream(filePath));
    Object o = in.readObject();
    in.close();
    return o;
} catch (FileNotFoundException e) {
    throw new RuntimeException("FileNotFoundException occurred. ", e);
...

if (file.exists() && file.isFile() && file.canRead()) {
    try (ObjectInputStream ois = new ObjectInputStream(new FileInputStream(file))) {
        Object obj = ois.readObject();
        return obj;
return null;

Object result = null;
try {
    FileInputStream fileIn = new FileInputStream(file);
    ObjectInputStream in = new ObjectInputStream(fileIn);
    result = in.readObject();
    in.close();
    fileIn.close();
} catch (ClassNotFoundException | IOException e) {
...

Object object = new Object();
FileInputStream fos = null;
try {
    if (!file.exists()) {
        return null;
    fos = new FileInputStream(file);
    ObjectInputStream ois;
...

try (FileInputStream fileIn = new FileInputStream(file)) {
    try (GZIPInputStream zipIn = new GZIPInputStream(fileIn)) {
        try (ObjectInputStream objIn = new ObjectInputStream(zipIn)) {
            return (Serializable) objIn.readObject();

ObjectInputStream in = null;
try {
    in = new ObjectInputStream(new BufferedInputStream(new FileInputStream(file)));
    return in.readObject();
} finally {
    if (in != null)
        in.close();

InputStream raw = new BufferedInputStream(new FileInputStream(file));
int compress = raw.read();
if (compress == 1) {
    raw = new InflaterInputStream(raw, new Inflater(true));
T result;
ObjectInputStream in = new ObjectInputStream(raw);
try {
...

O o = null;
try {
    final FileInputStream fileIn = new FileInputStream(file);
    final ObjectInputStream in = new ObjectInputStream(fileIn);
    o = (O) in.readObject();
    in.close();
    fileIn.close();
    return o;
...