Imagine I have the following situation:

Test1.java

import java.lang.ref.WeakReference;
public class Test1
{
    public WeakReference fieldName;

    public init()
    {
        fieldName = new WeakReference(this);
        Test2.setWeakRef(fieldName);
    }
}

Test2.java

import java.lang.ref.WeakReference;
public class Test2
{    
    public static setWeakRef(WeakReference weakRef)
    {
        //at this point I got weakRef in an other class.. now, how do I get the field name this reference was created with? So that it returns exactly "fieldName", because that's the name I gave it in Test1.java?
    }
}

At the location of the comment I received the weak reference created in an other class. How would I retreive the field name that this weak reference was created with, in this case "fieldName"?

Thanks in advance.