[xwiki-users] Exception when accessing Stats Space

Hello List, We have just activated statistics in our 1.4.1 xwiki installation and when accessing the Stats.WebHome page I get the following exception. Error number 4001 in 4: Error while parsing velocity page Stats.WebHome Wrapped Exception: Failed to evaluate content with id Web Home com.xpn.xwiki.XWikiException: Error number 4001 in 4: Error while parsing velocity page Stats.WebHome Wrapped Exception: Failed to evaluate content with id Web Home at com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRendere r.java:231) at com.xpn.xwiki.render.XWikiVelocityRenderer.render(XWikiVelocityRenderer. java:93) at com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderText(DefaultXWiki RenderingEngine.java:258) at com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderText(DefaultXWiki RenderingEngine.java:182) at com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderText(DefaultXWiki RenderingEngine.java:151) at com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:43 3) at com.xpn.xwiki.objects.classes.TextAreaClass.displayView(TextAreaClass.ja va:163) at com.xpn.xwiki.doc.XWikiDocument.display(XWikiDocument.java:1407) at com.xpn.xwiki.doc.XWikiDocument.display(XWikiDocument.java:1387) at com.xpn.xwiki.api.Document.display(Document.java:940) at sun.reflect.GeneratedMethodAccessor161.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invok e(UberspectImpl.java:295) at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java :245) at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReferenc e.java:203) at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference .java:294) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74 ) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.jav a:318) at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfState ment.java:107) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74 ) at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfState ment.java:88) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.jav a:318) at org.apache.velocity.runtime.directive.VelocimacroProxy.render(Velocimacr oProxy.java:194) at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective .java:170) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74 ) at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfState ment.java:88) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74 ) at org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:448) at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective .java:170) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74 ) at org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:448) at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective .java:170) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.jav a:318) at org.apache.velocity.runtime.directive.VelocimacroProxy.render(Velocimacr oProxy.java:194) at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective .java:170) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74 ) at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfState ment.java:88) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.jav a:318) at org.xwiki.velocity.DefaultVelocityEngine.evaluate(DefaultVelocityEngine. java:145) at org.xwiki.velocity.DefaultVelocityEngine.evaluate(DefaultVelocityEngine. java:117) at com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRendere r.java:226) at com.xpn.xwiki.render.XWikiVelocityRenderer.render(XWikiVelocityRenderer. java:93) at com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderText(DefaultXWiki RenderingEngine.java:258) at com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderText(DefaultXWiki RenderingEngine.java:182) at com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderText(DefaultXWiki RenderingEngine.java:151) at com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderDocument(DefaultX WikiRenderingEngine.java:140) at com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:42 3) at com.xpn.xwiki.api.Document.getRenderedContent(Document.java:371) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invok e(UberspectImpl.java:295) at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java :245) at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReferenc e.java:203) at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference .java:294) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.jav a:318) at org.xwiki.velocity.DefaultVelocityEngine.evaluate(DefaultVelocityEngine. java:145) at org.xwiki.velocity.DefaultVelocityEngine.evaluate(DefaultVelocityEngine. java:117) at com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRendere r.java:226) at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:1504) at com.xpn.xwiki.api.XWiki.parseTemplate(XWiki.java:608) at sun.reflect.GeneratedMethodAccessor96.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invok e(UberspectImpl.java:295) at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java :245) at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReferenc e.java:203) at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference .java:294) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.jav a:318) at org.apache.velocity.runtime.directive.VelocimacroProxy.render(Velocimacr oProxy.java:194) at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective .java:170) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74 ) at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfState ment.java:88) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74 ) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.jav a:318) at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfState ment.java:107) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.jav a:318) at org.xwiki.velocity.DefaultVelocityEngine.evaluate(DefaultVelocityEngine. java:145) at org.xwiki.velocity.DefaultVelocityEngine.evaluate(DefaultVelocityEngine. java:117) at com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRendere r.java:226) at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:1504) at com.xpn.xwiki.web.Utils.parseTemplate(Utils.java:109) at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:225) 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:596) at javax.servlet.http.HttpServlet.service(HttpServlet.java:689) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:428) at org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(Web ApplicationHandler.java:830) at com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodi ngFilter.java:112) at org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(Web ApplicationHandler.java:821) at org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationH andler.java:471) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:568) at org.mortbay.http.HttpContext.handle(HttpContext.java:1565) at org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationCon text.java:633) at org.mortbay.http.HttpContext.handle(HttpContext.java:1517) at org.mortbay.http.HttpServer.service(HttpServer.java:954) at org.mortbay.http.HttpConnection.service(HttpConnection.java:816) at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:983) at org.mortbay.http.HttpConnection.handle(HttpConnection.java:833) at org.mortbay.http.SocketListener.handleConnection(SocketListener.java:244 ) at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357) at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534) Wrapped Exception: org.apache.velocity.exception.MethodInvocationException: Invocation of method 'getDocumentStatistics' in class com.xpn.xwiki.api.StatsService threw exception java.lang.NullPointerException @ Stats.WebHome6,33? at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java :286) at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReferenc e.java:203) at org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference. java:419) at org.apache.velocity.runtime.parser.node.ASTExpression.value(ASTExpressio n.java:73) at org.apache.velocity.runtime.parser.node.ASTSetDirective.render(ASTSetDir ective.java:125) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74 ) at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfState ment.java:88) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.jav a:318) at org.xwiki.velocity.DefaultVelocityEngine.evaluate(DefaultVelocityEngine. java:145) at org.xwiki.velocity.DefaultVelocityEngine.evaluate(DefaultVelocityEngine. java:117) at com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRendere r.java:226) at com.xpn.xwiki.render.XWikiVelocityRenderer.render(XWikiVelocityRenderer. java:93) at com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderText(DefaultXWiki RenderingEngine.java:258) at com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderText(DefaultXWiki RenderingEngine.java:182) at com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderText(DefaultXWiki RenderingEngine.java:151) at com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:43 3) at com.xpn.xwiki.objects.classes.TextAreaClass.displayView(TextAreaClass.ja va:163) at com.xpn.xwiki.doc.XWikiDocument.display(XWikiDocument.java:1407) at com.xpn.xwiki.doc.XWikiDocument.display(XWikiDocument.java:1387) at com.xpn.xwiki.api.Document.display(Document.java:940) at sun.reflect.GeneratedMethodAccessor161.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invok e(UberspectImpl.java:295) at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java :245) at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReferenc e.java:203) at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference .java:294) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74 ) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.jav a:318) at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfState ment.java:107) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74 ) at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfState ment.java:88) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.jav a:318) at org.apache.velocity.runtime.directive.VelocimacroProxy.render(Velocimacr oProxy.java:194) at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective .java:170) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74 ) at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfState ment.java:88) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74 ) at org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:448) at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective .java:170) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74 ) at org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:448) at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective .java:170) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.jav a:318) at org.apache.velocity.runtime.directive.VelocimacroProxy.render(Velocimacr oProxy.java:194) at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective .java:170) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74 ) at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfState ment.java:88) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.jav a:318) at org.xwiki.velocity.DefaultVelocityEngine.evaluate(DefaultVelocityEngine. java:145) at org.xwiki.velocity.DefaultVelocityEngine.evaluate(DefaultVelocityEngine. java:117) at com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRendere r.java:226) at com.xpn.xwiki.render.XWikiVelocityRenderer.render(XWikiVelocityRenderer. java:93) at com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderText(DefaultXWiki RenderingEngine.java:258) at com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderText(DefaultXWiki RenderingEngine.java:182) at com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderText(DefaultXWiki RenderingEngine.java:151) at com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderDocument(DefaultX WikiRenderingEngine.java:140) at com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:42 3) at com.xpn.xwiki.api.Document.getRenderedContent(Document.java:371) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invok e(UberspectImpl.java:295) at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java :245) at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReferenc e.java:203) at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference .java:294) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.jav a:318) at org.xwiki.velocity.DefaultVelocityEngine.evaluate(DefaultVelocityEngine. java:145) at org.xwiki.velocity.DefaultVelocityEngine.evaluate(DefaultVelocityEngine. java:117) at com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRendere r.java:226) at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:1504) at com.xpn.xwiki.api.XWiki.parseTemplate(XWiki.java:608) at sun.reflect.GeneratedMethodAccessor96.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invok e(UberspectImpl.java:295) at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java :245) at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReferenc e.java:203) at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference .java:294) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.jav a:318) at org.apache.velocity.runtime.directive.VelocimacroProxy.render(Velocimacr oProxy.java:194) at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective .java:170) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74 ) at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfState ment.java:88) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74 ) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.jav a:318) at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfState ment.java:107) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.jav a:318) at org.xwiki.velocity.DefaultVelocityEngine.evaluate(DefaultVelocityEngine. java:145) at org.xwiki.velocity.DefaultVelocityEngine.evaluate(DefaultVelocityEngine. java:117) at com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRendere r.java:226) at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:1504) at com.xpn.xwiki.web.Utils.parseTemplate(Utils.java:109) at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:225) 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:596) at javax.servlet.http.HttpServlet.service(HttpServlet.java:689) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:428) at org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(Web ApplicationHandler.java:830) at com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodi ngFilter.java:112) at org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(Web ApplicationHandler.java:821) at org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationH andler.java:471) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:568) at org.mortbay.http.HttpContext.handle(HttpContext.java:1565) at org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationCon text.java:633) at org.mortbay.http.HttpContext.handle(HttpContext.java:1517) at org.mortbay.http.HttpServer.service(HttpServer.java:954) at org.mortbay.http.HttpConnection.service(HttpConnection.java:816) at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:983) at org.mortbay.http.HttpConnection.handle(HttpConnection.java:833) at org.mortbay.http.SocketListener.handleConnection(SocketListener.java:244 ) at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357) at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534) Caused by: java.lang.NullPointerException at com.xpn.xwiki.stats.impl.xwiki.XWikiStatsReader.getHqlNameFilterFromScop e(XWikiStatsReader.java:129) at com.xpn.xwiki.stats.impl.xwiki.XWikiStatsReader.getDocumentStatistics(XW ikiStatsReader.java:199) at com.xpn.xwiki.stats.impl.XWikiStatsServiceImpl.getDocumentStatistics(XWi kiStatsServiceImpl.java:171) at com.xpn.xwiki.api.StatsService.getDocumentStatistics(StatsService.java:9 0) at sun.reflect.GeneratedMethodAccessor209.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invok e(UberspectImpl.java:295) at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java :245) 116 more