Re: Thread Safety Checker

From:
Robert Klemme <shortcutter@googlemail.com>
Newsgroups:
comp.lang.java.programmer
Date:
Tue, 16 Jun 2009 08:20:42 +0200
Message-ID:
<4A3739BA.9040902@googlemail.com>
On 15.06.2009 23:01, Lothar Kimmeringer wrote:

Hoss Spence wrote:

Does anyone know if there is a Checkstyle like program that will warn
you about unsafe concurrency practices?


FindBugs (http://findbugs.sourceforge.net/) has a complete
section called "Multithreaded correctness". The description
of these tests start at
http://findbugs.sourceforge.net/bugDescriptions.html#DC_DOUBLECHECK


There is one thing I dislike about FindBugs: I haven't found an easy way
to flag a warning as invalid on a case by case basis (for example with a
comment in source code). We have something like

lock.lock();
try {
....
}
finally {
   flag = false;
   lock.unlock();
}

FindBugs complains that the lock is not released for all control flows
which is nonsense since the boolean assignment cannot throw.

Something that could be run in
CruiseControl for instance.


I don't know CruiseControl, but you can integrate FindBugs into
Ant and Maven and it's available as Eclipse-plugin, so you can
see the messages in the "problems"-view.


We have FindBugs integrated with https://hudson.dev.java.net/ so if
CruiseControl fails Hudson is an alternative.

Kind regards

    robert

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