java get byte from object that is not serializibe

Question

Is there a way to get the bytes of an object that doesn't implement serializeble? In cpp i know you can just copy size of the object bytes from the address of the object in the memory, is there a way to do this in java?

edit: I don't really see how that is a duplication of Converting any object to a byte array in java by just to clarify i meant convert a specific non serilizable object

Why do you want to get the bytes from a non serializable object? — Joao Esperancinha, May 28 '16 at 16:42
You should get at least two techniques, but it is not so easy - C struct byte data (memory) cast to an object. Such is more an area for ByteBufferl, DataInputStream. — Joop Eggen, May 28 '16 at 16:43
Its an object i get from the operation system so i can't make it implement serializible — kill129, May 28 '16 at 16:44
@kill129 my recommendation to you is just to get the information you need and create a new class that contains that information and that is Serializable. — Joao Esperancinha, May 28 '16 at 16:46

score 1 · Answer 1 · answered May 28 '16 at 16:43

No, it isn't possible to get the raw bytes of an object. Java doesn't have such a view of the world, where objects even have an underlying byte representation.

Note that serialization doesn't give you access to the byte representation of an object either. Serialization is a way of encoding the information in an object into a byte array. It doesn't give you the raw bytes. If you somehow searched through memory for those serialized bytes you wouldn't find them.

score 0 · Answer 2 · answered May 28 '16 at 16:44

0

Probably not and most likely because Serialization is a Java mechanism that provides a representation in bytes of values, types and parameter types. I recommend you read this introduction to serialization.

answered May 28 '16 at 16:44

Joao Esperancinha

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java get byte from object that is not serializibe

2 Answers2