StringBuffer does not use references

From: Heiner Schwarte

In the following code sniplet, references to a single StringBuffer object are
serialised as separate objects. (xstream-1.0.1.jar, IBMJava2-141, Eclipse
3.0.0)

Regards Heiner

public class Test {
public static void main(String[] args)

{ XStream xstream = new XStream(); StringBuffer str1= new StringBuffer("Hello"); StringBuffer str2 = str1; str2.setCharAt(1,'a'); Pair p=new Pair(str1,str2); // Pair has two Object slots named first and second String out=xstream.toXML(p); System.out.println(out); Pair p2=(Pair)xstream.fromXML(out); ((StringBuffer) p2.first).setCharAt(1,'e'); System.out.println((StringBuffer)(p2.second)); //should be "Hello", not "Hallo" }

}