Name: rmT116609 Date: 10/02/2000


java version "1.3.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0-beta_refresh)
Java HotSpot(TM) Client VM (build 1.3.0-beta_refresh, mixed mode)


I use the Constructor class very heavily to create objects and want to be
able to serialize the creator.

Complete Java source code that demonstrates the problem.

import java.lang.reflect.*;
import java.io.*;

public class SerBug implements Serializable {
    
    Constructor[] c = Object.class.getConstructors();

    public static void main (String args[]) throws Exception {
ObjectOutputStream out = new ObjectOutputStream(new
FileOutputStream("bug.out"));
out.writeObject(new SerBug());
    }
}


> - The exact text of any error message(s) that appeared.

Exception in thread "main" java.io.NotSerializableException:
java.lang.reflect.Constructor
        at
java.io.ObjectOutputStream.outputObject(ObjectOutputStream.java:1148)
        at
java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:366)
        at
java.io.ObjectOutputStream.outputArray(ObjectOutputStream.java:1098)
        at
java.io.ObjectOutputStream.checkSubstitutableSpecialClasses(ObjectOutputStream.java:456)
        at
java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:361)
        at
java.io.ObjectOutputStream.outputClassFields(ObjectOutputStream.java:1841)
        at
java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:480)
        at
java.io.ObjectOutputStream.outputObject(ObjectOutputStream.java:1214)
        at
java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:366)
        at SerBug.main(SerBug.java:10)

> - Any trace information.

It is obviously that the class does not implement the Serializable
interface (which will change soon, I hope).

The problem is not alone with the Constuctor. It is common to all
classes in the java.lang.reflect package and is IMHO simply unnecessary.
(Review ID: 109058)
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