Due to a bug in Perl,
%foo->{bar}
gets interpreted as a
(\%foo)->{bar}
->{bar} expects a reference, and thus a scalar, so it should be interpreted as
scalar(%foo)->{bar}
The deprecation warning was added in anticipation of getting this bug fixed.
Since
%{$WAI->getMem()}->{'MemTotal'}
is getting interpreted as
\%{$WAI->getMem()}->{'MemTotal'}
you could use that, or you could shorten it to
$WAI->getMem()->{'MemTotal'}
Now where's this baloney you promised? I'm hungry!
Update: Fixed bad curlies matching in second half.
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