Generic Java Deep Copy Class

DeepCopy.java

package com.example;
 
import java.io.*;
 
public class DeepCopy {
    private Class<?> clazz;
    private byte[] byteData;
 
    public <T> DeepCopy(T t) {
        saveObject(t);
    }
 
    public <T> T copy() {
        return loadObject();
    }
 
    private <T> void saveObject(T t) {
        clazz = t.getClass();
        try {
            try (ByteArrayOutputStream bos = new ByteArrayOutputStream()) {
                try (ObjectOutputStream oos = new ObjectOutputStream(bos)) {
                    oos.writeObject(t);
                    oos.flush();
                    byteData = bos.toByteArray();
                }
            }
        } catch (IOException e) {
            throw new IllegalStateException("Error serializing class " + clazz.getName(), e);
        }
    }
 
    private <T> T loadObject() {
        if (byteData != null && clazz != null) {
            try (ByteArrayInputStream bais = new ByteArrayInputStream(byteData)) {
                T rv = (T) new ObjectInputStream(bais).readObject();
                return rv;
            } catch (IOException e) {
                throw new IllegalStateException("Error de-serializing " + clazz.getName(), e);
            } catch (ClassNotFoundException ce) {
                throw new IllegalStateException("Error de-serializing " + clazz.getName(), ce);
            }
        } else {
            throw new IllegalArgumentException("Error de-serializing, byteData not initialized!");
        }
    }
}