Re: [aspectj-users] advice matching the synchronized method shadow ... w

[Matthew Webster <matthew_webster@xxxxxxxxxx>]

Eric,

Please read Bug 123759 "expose
join points for synchronized methods/blocks and define new related pointcuts".
Essentially to advise a synchronized method we must transform it into a
non-synchronized method with a synchronized block. However the existing
execution() pointcut matching means that the method execution join point
will occur before the lock rather than after (as it should do).

Matthew Webster
AOSD Project
Java Technology Centre, MP146
IBM United Kingdom Limited
Hursley Park, Winchester,  SO21 2JN, England
Telephone: +44 196 2816139 (external) 246139 (internal)

"Eric Bodden" <eric.bodden@xxxxxxxxxxxxxx>
Sent by: aspectj-users-bounces@xxxxxxxxxxx

28/03/2007 15:38

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Subject	[aspectj-users] advice matching the synchronized method shadow ...        will be executed outside the lock rather than inside        (compiler limitation)

Hi all.

ajc is giving me this compiler warning:

advice matching the synchronized method shadow <some method name here>
will be executed outside the lock rather than inside (compiler
limitation)

What does this mean? When ajc injects code into the body of a
synchronized method, is this code then not automatically guarded by
the lock that is assigned when this method is entered? Could somebody
clarify the semantics of that message for me?

Cheers,
Eric

-- 
Eric Bodden
Sable Research Group
McGill University, Montréal, Canada
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