[xwiki-users] Issue with the stats module

Hello xwiki users (& friends), At the xwiki I enabled stats at xwiki.cfg but calling the stat modules fails for all graph stuff. You may review http://m2m.fm:8080/xwiki/bin/view/Stats/ (version 2.3.1) And the result for monthly/yearly/all-time stats is as follows. Already seen? Best regards, thx in advance, Pierre Unexpected charting exception: Could not initialize class org.jfree.chart.JFreeChartjava.lang.NoClassDefFoundError: Could not initialize class org.jfree.chart.JFreeChart at com.xpn.xwiki.plugin.charts.ChartingPlugin.generateChart(ChartingPlugin. java:126) at com.xpn.xwiki.plugin.charts.ChartingPluginApi.generateChart(ChartingPlug inApi.java:55) at com.xpn.xwiki.plugin.charts.ChartingMacro.execute(ChartingMacro.java:81) at com.xpn.xwiki.render.filter.MacroFilter.handleMatch(MacroFilter.java:90) at org.radeox.filter.regex.RegexTokenFilter$1.handleMatch(RegexTokenFilter. java:91) at org.radeox.regex.JdkMatcher.substitute(JdkMatcher.java:48) at org.radeox.filter.regex.RegexTokenFilter.filter(RegexTokenFilter.java:89 ) at org.radeox.filter.FilterPipe.filter(FilterPipe.java:169) at com.xpn.xwiki.render.XWikiRadeoxRenderEngine.render(XWikiRadeoxRenderEng ine.java:96) at com.xpn.xwiki.render.XWikiRadeoxRenderer.render(XWikiRadeoxRenderer.java :130) at com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderText(DefaultXWiki RenderingEngine.java:272) at com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderText(DefaultXWiki RenderingEngine.java:202) at com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderText(DefaultXWiki RenderingEngine.java:170) at com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:85 0) at com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:82 3) at com.xpn.xwiki.objects.classes.TextAreaClass.displayView(TextAreaClass.ja va:219) at com.xpn.xwiki.doc.XWikiDocument.display(XWikiDocument.java:2600) at com.xpn.xwiki.doc.XWikiDocument.display(XWikiDocument.java:2565) at com.xpn.xwiki.doc.XWikiDocument.display(XWikiDocument.java:2514) at com.xpn.xwiki.api.Document.display(Document.java:1138) at sun.reflect.GeneratedMethodAccessor319.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor Impl.java:43) at java.lang.reflect.Method.invoke(Method.java:616) at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInv oke(UberspectImpl.java:389) at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invok e(UberspectImpl.java:378) at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java :270) at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReferenc e.java:252) at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference .java:332) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72 ) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.jav a:336) at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfState ment.java:106) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72 ) at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfState ment.java:87) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72 ) at org.apache.velocity.runtime.directive.VelocimacroProxy.render(Velocimacr oProxy.java:212) at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.j ava:247) at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective .java:175) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72 ) at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfState ment.java:87) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72 ) at org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:366) at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective .java:175) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72 ) at org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:366) at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective .java:175) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72 ) at org.apache.velocity.runtime.directive.VelocimacroProxy.render(Velocimacr oProxy.java:212) at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.j ava:247) at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective .java:175) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72 ) at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfState ment.java:87) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.jav a:336) at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVeloci tyEngine.java:191) at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVeloci tyEngine.java:156) at com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRendere r.java:116) at com.xpn.xwiki.render.XWikiVelocityRenderer.render(XWikiVelocityRenderer. java:93) at com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderText(DefaultXWiki RenderingEngine.java:272) at com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderText(DefaultXWiki RenderingEngine.java:202) at com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderText(DefaultXWiki RenderingEngine.java:170) at com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderDocument(DefaultX WikiRenderingEngine.java:159) at com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:79 4) at com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:81 1) at com.xpn.xwiki.api.Document.getRenderedContent(Document.java:525) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav a:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor Impl.java:43) at java.lang.reflect.Method.invoke(Method.java:616) at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInv oke(UberspectImpl.java:389) at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invok e(UberspectImpl.java:378) at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java :270) at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReferenc e.java:252) at org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference. java:493) at org.apache.velocity.runtime.parser.node.ASTExpression.value(ASTExpressio n.java:71) at org.apache.velocity.runtime.parser.node.ASTSetDirective.render(ASTSetDir ective.java:142) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72 ) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.jav a:336) at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfState ment.java:106) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.jav a:336) at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVeloci tyEngine.java:191) at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVeloci tyEngine.java:156) at com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRendere r.java:116) at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:1791) at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:1729) at com.xpn.xwiki.api.XWiki.parseTemplate(XWiki.java:837) at sun.reflect.GeneratedMethodAccessor131.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor Impl.java:43) at java.lang.reflect.Method.invoke(Method.java:616) at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInv oke(UberspectImpl.java:389) at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invok e(UberspectImpl.java:378) at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java :270) at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReferenc e.java:252) at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference .java:332) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72 ) at org.apache.velocity.runtime.directive.VelocimacroProxy.render(Velocimacr oProxy.java:212) at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.j ava:247) at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective .java:175) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72 ) at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfState ment.java:87) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72 ) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.jav a:336) at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfState ment.java:106) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.jav a:336) at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVeloci tyEngine.java:191) at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVeloci tyEngine.java:156) at com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRendere r.java:116) at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:1840) at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:1761) at com.xpn.xwiki.web.Utils.parseTemplate(Utils.java:154) at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:224) at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:115) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestPr ocessor.java:431) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java: 236) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414) at javax.servlet.http.HttpServlet.service(HttpServlet.java:690) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica tionFilterChain.java:269) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt erChain.java:188) at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:129) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica tionFilterChain.java:215) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt erChain.java:188) at com.xpn.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(Conversion Filter.java:152) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica tionFilterChain.java:215) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt erChain.java:188) at com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java: 68) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica tionFilterChain.java:215) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt erChain.java:188) at com.xpn.xwiki.web.SavedRequestRestorerFilter.doFilter(SavedRequestRestor erFilter.java:304) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica tionFilterChain.java:215) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt erChain.java:188) at com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodi ngFilter.java:112) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica tionFilterChain.java:215) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt erChain.java:188) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv e.java:210) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv e.java:172) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java :127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java :117) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve. java:108) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:1 51) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:87 0) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.proc essConnection(Http11BaseProtocol.java:665) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint .java:528) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollow erWorkerThread.java:81) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool .java:685) at java.lang.Thread.run(Thread.java:636)