Java Utililty Methods Serialize

ByteArrayOutputStream bytes = new ByteArrayOutputStream();
ObjectOutputStream stream = new ObjectOutputStream(bytes);
stream.writeObject(o);
stream.flush();
return bytesToString(bytes.toByteArray());

if (object == null) {
    return;
File file = new File("target");
if (!file.isDirectory() || !file.canWrite()) {
    System.err.println("Directory not found or read only: " + file.getAbsolutePath());
    return;
file = new File(file, "surefire-reports");
if (!file.exists() && !file.mkdir()) {
    System.err.println("Failed to create the output directory: " + file.getAbsolutePath());
    return;
file = new File(file, testClass.getName() + ".serialized");
try (ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream(file))) {
    out.writeObject(object);
} catch (IOException e) {
    System.err.println(e);
    file.delete();

Serializable in = (Serializable) ob;
ByteArrayOutputStream byteOutStream = new ByteArrayOutputStream();
ObjectOutputStream outStream = new ObjectOutputStream(byteOutStream);
outStream.writeObject(in);
ByteArrayInputStream byteInStream = new ByteArrayInputStream(byteOutStream.toByteArray());
ObjectInputStream inStream = new ObjectInputStream(byteInStream);
return inStream.readObject();