A new version of Demeter/Java is available.
To use it, type:

source /proj/demsys/demjava/bin/use-newer-demjava

at the beginning of your Demeter/Java session.

I have tested the new version and it worked on my test cases.
But I let you decide whether you want to switch.
If you already have switched to 0.4.3, switching to 0.4.4
should cause no problems and it repairs some of the wrinkles
which you reported.

-- Karl L.


From dougo@ccs.neu.edu Wed Mar  5 02:50:59 1997
From: Doug Orleans <dougo@ccs.neu.edu>
To: lieber@k2.ccs.neu.edu
cc: lth@k2.ccs.neu.edu, johan@k2.ccs.neu.edu, ghulten@k2.ccs.neu.edu,
        kedar@k2.ccs.neu.edu, binoy@k2.ccs.neu.edu
Subject: demjava 0.4.4 is available


I just uploaded version 0.4.4 to /proj/demsys/demjava (on both vega
and other machines).  It has three bug fixes:

    ** fixed wrapper call bugs

    In some traversals involving alternation classes, a wrapper method
    (before or after) was being called multiple times, being called in the
    wrong order, or not being called at all.  This no longer happens: each
    wrapper method on an object's class or ancestors is called once for
    each object, and the order in which they are called obeys the
    prefix-super-sub and suffix-sub-super rules (see p. 258 in the Demeter
    book).

    ** prematurely terminated paths

    A traversal that enters an object whose class is not in the path will
    now be terminated, rather than continuing.

    ** fixed file descriptor leak

    Running demjava for the second time on a large cd file would cause
    demjava to run out of file descriptors, because it wasn't closing the
    diff streams.  It now closes them.

To use it, type

    source /proj/demsys/demjava/bin/use-newer-demjava

if you're using csh or tcsh.  (You bash users will have to set your
PATH and CLASSPATH manually.)

Karl, please test this version on your regression suite. If it works,
you can probably change the "new" symlink to point to it, because
there are no user interface changes, only bug fixes; I don't think it
will interfere with students' development cycles to make them use this
version if they have already switched to 0.4.3.  If you disagree, you
can just leave the link as is and have them use the "newer" symlink
if they need to.

Hope these fixes help you...

--Doug