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I got a Type-Safe Warning

Denny Kim
Greenhorn

Joined: Jan 31, 2007
Posts: 1
HI~ nice meet you. I have a guestion!.

I use WeakReference in my LockManager Class. Here,



But,I got a Type-Safe Warning When I compiled this.!!

Note: Db.java uses unchecked or unsafe operations. Note: Recompile with -Xlint:unchecked for details.

Then, I modified Map.



As expected,It is the same as this.

Now,How do i fix this(Type-safe warning)? Please,Help me.

[ January 31, 2007: Message edited by: Denny Kim ]

(edited: SCJD is a quiet place, don't shout in topic titles)
[ February 01, 2007: Message edited by: Barry Gaunt ]
Barry Gaunt
Ranch Hand

Joined: Aug 03, 2002
Posts: 7729
Do not forget that WeakReference is a generic class:




Ask a Meaningful Question and HowToAskQuestionsOnJavaRanch
Getting someone to think and try something out is much more useful than just telling them the answer.
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: I got a Type-Safe Warning