Attached is Hans Martin Mosner's submission from 4/29/2002.  He noticed
the same problem that Nathanael did, and also tried to prevent race
conditions in accessor methods.

Hans's post:
http://lists.squeakfoundation.org/pipermail/squeak-dev/2002-April/038911
.html

There are a number of posts in the thread titled "[Q] Has SharedQueue a
very subtle bug?" which are archived on the Web at:
http://lists.squeakfoundation.org/pipermail/squeak-dev/2002-April/thread
.html


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