logging fixes for last pre-ZBB JDK7-TL snapshot (6977677, 7016208, 7041595)

[Mandy Chung]

  On 05/16/11 12:22, Mandy Chung wrote:
> LogManager.java
>     Retrying in a while loop is one way to fix weak ref / gc timing 
> issue.
>     What about if you refactor the addLogger method to add a new private
>     private method equivalent to addLogger (say add(Logger)) that will 
> return
>     logger if added successfully or null if not.

s%null if not%the other logger if the logger's name already registered%

Mandy