Question

I want to seriliaze an object with this method :

public void serializ(CRDT m) throws IOException {
    ByteArrayOutputStream byteOutput = new ByteArrayOutputStream();
    ObjectOutputStream stream = new ObjectOutputStream(byteOutput);
    stream.writeObject(m);
    sumMemory = byteOutput.size();

    stream.flush();
    stream.close();
    byteOutput.flush();
    byteOutput.close();
}

I have an exception java.lang.StackOverflowError

Exception in thread "main" java.lang.StackOverflowError
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1169)
    at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1518)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1483)
    at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1400)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158)
    at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1518)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1483)
    at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1400)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158)
    at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1518)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1483)
    at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1400)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1158)
    at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1518)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1483)
    at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1400)
    ...

I read some forum that i need to reimplementing the writeObject / readObject methods.
Is it the only possible solution ? and how to reimplementing the writeObject / readObject

My object to serialize is :
http://pastebin.com/D1kEidtn

Two class that cause errors are :
pastebin.com/Sb3X0Quq and enter link description here

Answer 1

CRDT is the superclass of the Object m which is serialized.
The error is that the class that derives from CRDT seems to have a reference to itself, leading to an endless recursion
You see that in the stack trace.
Tipp find out the class of The object CRDT m: by either using the debugger, or adding an System.out.println(m.getClass()) at the beginn of your serialize() method.
Then when you know the class, check wheter the object has a reference to itself.