From: Constantine Plotnikov <###@###.###>
To: jdkea <###@###.###>
Subject: WeakValueHashMap 

I suggest to add class WeakValueHashMap in which key/value pair is 
removed if value is no more referrenced. In my application (prolog 
interpreter) I have many cases when it is very useful but I had not 
any cases when WeakHashMap were useful. Such class can be used for 
example for mapping string to loaded resources.