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    Le 25/05/11 12:52, Jon Blower a &eacute;crit&nbsp;:
    <blockquote
      cite="mid:D38DCA8842FECD4585C8DE16D602ABF41708C5@vime-mbx1.rdg.ac.uk"
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            &quot;Calibri&quot;,&quot;sans-serif&quot;; color: rgb(31,
            73, 125);"><o:p></o:p>Sorry to join this late &#8211; I notice
            that this is a PermGen memory error, which is connected with
            classloading, not heap memory usage.&nbsp; This commonly happens
            when redeploying a web application without a clean restart
            of the app server.&nbsp; I don&#8217;t fully understand this type of
            error, but you might like to try cleanly restarting your app
            server (if you&#8217;re using one) or increasing the permgen space
            using a command-line switch to the JVM (sorry, can&#8217;t
            remember what the syntax is!)</span></p>
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    </blockquote>
    <br>
    Thanks for the feedback. Actually there is known issues in Geotk
    regarding undeployment: some threads are not killed and some <tt>java.lang.ThreadLocal</tt>
    variables are not cleared, which prevent the JVM to unload every
    Geotk classes before to reload them when redeploying.<br>
    <br>
    An attempt to mitigate the problem has been provided with the <a
href="http://www.geotoolkit.org/apidocs/org/geotoolkit/lang/Setup.html#shutdown%28%29"><tt>Setup.shutdown()</tt></a>
    static method, which can be invoked when you know that your
    application is about to be undeployed (if possible). However this
    does not solve all issues. We are investigating usage of JSR-330 and
    OSGi (now that Oracle confirmed that JDK-8 will be compatible with
    OSGi) as a better fix (but we will not force user to use OSGi).<br>
    <br>
    In the maintime the workaround proposed by Jon still the most
    reliable approach.<br>
    <br>
    &nbsp;&nbsp;&nbsp; Martin<br>
    <br>
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