Hi Peter,

On 04 Oct 2016, at 15:09, Peter Huisman <p.huisman@ximm.nl> wrote:

Hi,

We have migrated to xwiki 8.2.1 in a docker environment. Everything is working as a charm. However: When registerring a user (as an admin), I get an error. Investigating this only gives me results that date from 2013 but nothing recent. I am not sure how to proceed. The error is:

<error> type Exception report

message Servlet execution threw an exception

description The server encountered an internal error that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: Servlet execution threw an exception com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:115) org.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:127) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63) org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208) org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111) org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:137) root cause

java.lang.NoClassDefFoundError: Could not initialize class com.xpn.xwiki.web.RegisterAction sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) java.lang.reflect.Constructor.newInstance(Constructor.java:423) java.lang.Class.newInstance(Class.java:442) org.apache.struts.util.RequestUtils.applicationInstance(RequestUtils.java:172) org.apache.struts.util.RequestUtils.applicationInstance(RequestUtils.java:147) org.apache.struts.action.RequestProcessor.processActionCreate(RequestProcessor.java:281) org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:221) org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913) org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449) javax.servlet.http.HttpServlet.service(HttpServlet.java:622) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:115) org.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:127) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63) org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208) org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111) org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:137) </error>

Is there anyone who can show the direction to look for an answer?

Might be good to look in the xwiki logs to see the full stack trace since I feel it’s missing some root cause. What this seems to mean is that the xwiki oldcore jar is not present which is very unlikely so it would be good to see the root cause to understand why the RegisterAction could not be loaded. Thanks -Vincent

Br,

Peter