https://issues.apache.org/bugzilla/show_bug.cgi?id=54921
--- Comment #3 from Konstantin Kolinko <knst.koli...@gmail.com> ---
(In reply to comment #1)
> It isn't clear which preferences API you are using. The code appears to be
> using "java.util.prefs" which is from Java 1.4 yet you state you are using a
> "new" preferences API. Something doesn't add up here.
>
+1 to all that Mark wrote.
1. The "java.util.prefs.FileSystemPreferences" class from your stacktrace is
not present in neither one of Oracle JDKs {6u45 or 7u21} on Windows.
2. Your stack trace is not full. It is not clear to what execution thread it
belongs. (E.g. if it is called from a Finalizer, there is no wonder in such
behaviour).
You have to provide some sample web application that reproduces this and more
details on your platform.
3. Some classloader memory leaks in JRE classes may be avoided by preloading
those classes when Tomcat starts. There is a Listener that can be configured to
do that, if you know what classes to preload.
Further discussion belongs to the users@ mailing list.
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