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    <p>Hello,<br>
    </p>
    <p>now I tried to update the production server from 9.0.0 to 9.5.2
      (did it in test systems first without this problem) in result I
      have an error message which prevents front end editing
      functionality:<br>
    </p>
    <p>
      <blockquote type="cite"><small>Deserialization of core data
          failed. This may be caused by expired java-script resources,
          please clear your browser cache and try again.<br>
          Grund:org.opencms.gwt.shared.CmsCoreData/</small><span
          style="color: rgb(34, 34, 34); font-family: Verdana,
          Helvetica, Arial, sans-serif; font-size: 12px; font-style:
          normal; font-variant: normal; font-weight: normal;
          letter-spacing: normal; line-height: 14px; orphans: auto;
          text-align: left; text-indent: 0px; text-transform: none;
          white-space: normal; widows: 1; word-spacing: 0px;
          -webkit-text-stroke-width: 0px; display: inline !important;
          float: none; background-color: rgb(255, 255, 255);">2407870103</span></blockquote>
    </p>
    <p>This happens with Cache cleared, in private/Incognito Windows and
      with Firefox and Chrome (current versions). Deletion of
      Tomcat-work and ${OPENCMS_HOME}/WEB-INF/jsp/ did not solve as
      well.</p>
    <p>Backend seems to work as usual, have not found problems. No
      indication in opencms.log as well.<br>
    </p>
    <p>Searching Google and this mailing list did not provide help as
      well. The error message appears twice, here the first detailed
      error message:<br>
    </p>
    <p>
      <blockquote type="cite"><small>Ticket Id: 1445591669356<br>
          java.lang.Exception: Deserialization of core data failed. This
          may be caused by expired java-script resources, please clear
          your browser cache and try again.<br>
Unknown.VD(<a class="moz-txt-link-freetext" href="http://regisonline.de/resources/ade/containerpage/BA396E8211D15B960126016142B4CAD2.cache.html@18">http://regisonline.de/resources/ade/containerpage/BA396E8211D15B960126016142B4CAD2.cache.html@18</a>)<br>
Unknown._D(<a class="moz-txt-link-freetext" href="http://regisonline.de/resources/ade/containerpage/BA396E8211D15B960126016142B4CAD2.cache.html@21">http://regisonline.de/resources/ade/containerpage/BA396E8211D15B960126016142B4CAD2.cache.html@21</a>)<br>
Unknown.wHf(<a class="moz-txt-link-freetext" href="http://regisonline.de/resources/ade/containerpage/BA396E8211D15B960126016142B4CAD2.cache.html@88">http://regisonline.de/resources/ade/containerpage/BA396E8211D15B960126016142B4CAD2.cache.html@88</a>)<br>
Unknown.xHf(<a class="moz-txt-link-freetext" href="http://regisonline.de/resources/ade/containerpage/BA396E8211D15B960126016142B4CAD2.cache.html@49">http://regisonline.de/resources/ade/containerpage/BA396E8211D15B960126016142B4CAD2.cache.html@49</a>)<br>
Unknown.vHf(<a class="moz-txt-link-freetext" href="http://regisonline.de/resources/ade/containerpage/BA396E8211D15B960126016142B4CAD2.cache.html@42">http://regisonline.de/resources/ade/containerpage/BA396E8211D15B960126016142B4CAD2.cache.html@42</a>)<br>
Unknown.wHf(<a class="moz-txt-link-freetext" href="http://regisonline.de/resources/ade/containerpage/BA396E8211D15B960126016142B4CAD2.cache.html@39">http://regisonline.de/resources/ade/containerpage/BA396E8211D15B960126016142B4CAD2.cache.html@39</a>)<br>
Unknown.nIf(<a class="moz-txt-link-freetext" href="http://regisonline.de/resources/ade/containerpage/BA396E8211D15B960126016142B4CAD2.cache.html@26">http://regisonline.de/resources/ade/containerpage/BA396E8211D15B960126016142B4CAD2.cache.html@26</a>)<br>
Unknown.vpd(<a class="moz-txt-link-freetext" href="http://regisonline.de/resources/ade/containerpage/BA396E8211D15B960126016142B4CAD2.cache.html@524">http://regisonline.de/resources/ade/containerpage/BA396E8211D15B960126016142B4CAD2.cache.html@524</a>)<br>
Unknown.KHc(<a class="moz-txt-link-freetext" href="http://regisonline.de/resources/ade/containerpage/BA396E8211D15B960126016142B4CAD2.cache.html@459">http://regisonline.de/resources/ade/containerpage/BA396E8211D15B960126016142B4CAD2.cache.html@459</a>)<br>
Unknown.Xvb(<a class="moz-txt-link-freetext" href="http://regisonline.de/resources/ade/containerpage/BA396E8211D15B960126016142B4CAD2.cache.html@30">http://regisonline.de/resources/ade/containerpage/BA396E8211D15B960126016142B4CAD2.cache.html@30</a>)<br>
Unknown.$vb(<a class="moz-txt-link-freetext" href="http://regisonline.de/resources/ade/containerpage/BA396E8211D15B960126016142B4CAD2.cache.html@158">http://regisonline.de/resources/ade/containerpage/BA396E8211D15B960126016142B4CAD2.cache.html@158</a>)<br>
Unknown.anonymous(<a class="moz-txt-link-freetext" href="http://regisonline.de/resources/ade/containerpage/BA396E8211D15B960126016142B4CAD2.cache.html@46">http://regisonline.de/resources/ade/containerpage/BA396E8211D15B960126016142B4CAD2.cache.html@46</a>)<br>
Unknown.gwtOnLoad(<a class="moz-txt-link-freetext" href="http://regisonline.de/resources/ade/containerpage/BA396E8211D15B960126016142B4CAD2.cache.html@110">http://regisonline.de/resources/ade/containerpage/BA396E8211D15B960126016142B4CAD2.cache.html@110</a>)<br>
Unknown.C(<a class="moz-txt-link-freetext" href="http://regisonline.de/resources/ade/containerpage/containerpage.nocache.js?version=9.0.0@145">http://regisonline.de/resources/ade/containerpage/containerpage.nocache.js?version=9.0.0@145</a>)<br>
Unknown.containerpage.onScriptLoad(<a class="moz-txt-link-freetext" href="http://regisonline.de/resources/ade/containerpage/containerpage.nocache.js?version=9.0.0@1023">http://regisonline.de/resources/ade/containerpage/containerpage.nocache.js?version=9.0.0@1023</a>)<br>
Unknown.anonymous(<a class="moz-txt-link-freetext" href="http://regisonline.de/resources/ade/containerpage/BA396E8211D15B960126016142B4CAD2.cache.html@25483">http://regisonline.de/resources/ade/containerpage/BA396E8211D15B960126016142B4CAD2.cache.html@25483</a>)</small></blockquote>
    </p>
    <p>Here is the other:<br>
    </p>
    <p>
      <blockquote type="cite"><small>Ticket Id: 1445591079414<br>
          java.lang.Exception: Deserialization of core data failed. This
          may be caused by expired java-script resources, please clear
          your browser cache and try again.<br>
          Unknown.SD(Unknown Source)<br>
          Unknown.YD(Unknown Source)<br>
          Unknown.YGf(Unknown Source)<br>
          Unknown.qNf(Unknown Source)<br>
          Unknown.uNf(Unknown Source)<br>
          Unknown.pwb(Unknown Source)<br>
          Unknown.gwb(Unknown Source)<br>
          Unknown.twb(Unknown Source)<br>
          Unknown.nwb(Unknown Source)<br>
          Unknown.Uvb(Unknown Source)<br>
          Unknown.Xvb(Unknown Source)<br>
          Unknown.Wvb/<(Unknown Source)<br>
          Unknown.qwb/<(Unknown Source)<br>
          Unknown.anonymous(Unknown Source)</small></blockquote>
    </p>
    <p>Any suggestions?<br>
    </p>
    <p>Regards,<br>
      Thorsten<br>
    </p>
    <p>
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