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Q#1> how to get Bytes of any object?

The best way to do it is to use ApacheUtils:

To Serialize:

byte[] data = SerializationUtils.serialize(yourObject);

deserialize:

YourObject yourObject = (YourObject) SerializationUtils.deserialize(byte[] data)

---------------

private byte[] convertToBytes(Object object) throws IOException {

try (ByteArrayOutputStream bos = new ByteArrayOutputStream();

ObjectOutput out = new ObjectOutputStream(bos)) {

out.writeObject(object);

return bos.toByteArray();

}

}

And the other way around:

private Object convertFromBytes(byte[] bytes) throws IOException, ClassNotFoundException {

try (ByteArrayInputStream bis = new ByteArrayInputStream(bytes);

ObjectInput in = new ObjectInputStream(bis)) {

return in.readObject();

}

}