Partial Serialization patch

[Jeroen Frijters]

Hi,

The current ObjectInputStream/ObjectOutputStream implementation doesn't
support multiple private fields with the same name.

Example:
import java.io.*;

class sertestbase implements Serializable {
  private int a = 1;
  public String toString() { return "" + a; }
}

class sertest extends sertestbase {
  private int a = 2;
  public static void main(String[] args) throws Throwable {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    new ObjectOutputStream(baos).writeObject(new sertest());
    ByteArrayInputStream bais = new
ByteArrayInputStream(baos.toByteArray());
    Object o = new ObjectInputStream(bais).readObject();
    System.out.println(o);
  }
  public String toString() {
    return "" + a + ", base: " + super.toString();
  }
}

Attached is a patch for java/io/ObjectInputStream.java and
java/io/ObjectOutputStream.java, I haven't patched the native code (I
don't use it), but the change should be trivial.

Regards,
Jeroen

ser.patch
Description: Binary data