# Internal error **URL:** \ **Category:** Classic Servoy\ **Created:** [July 2, 2008, 6:23pm UTC](https://forum.servoy.com/t/internal-error/9259 "2008-07-02T18:23:06Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![IT2Be](https://avatars.discourse-cdn.com/v4/letter/i/dc4da7/32.png) [@IT2Be](https://forum.servoy.com/u/IT2Be)\ **Post date:** [July 2, 2008, 6:23pm UTC](https://forum.servoy.com/t/internal-error/9259/1 "2008-07-02T18:23:06Z")
Servoy 3.5.6 Mac Os 10.5.4 Java 1.5 Safari 3.1.2 and Firefox 3.0 After making some minor changes to my solution the web client throws the below errors (Server log) and the web client does not start anymore. Any hints how I can debug this? Thanks 2008-07-02 20:17 http-8090-2 ERROR com.servoy.j2db.util.Debug Error rendering the page null org.apache.wicket.WicketRuntimeException: Can’t instantiate page using constructor public com.servoy.j2db.server.headlessclient.SignIn() at org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:168) at org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:58) at org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.newPage(BookmarkablePageRequestTarget.java:262) at org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.getPage(BookmarkablePageRequestTarget.java:283) at org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.processEvents(BookmarkablePageRequestTarget.java:210) at org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents(AbstractRequestCycleProcessor.java:90) at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1166) at org.apache.wicket.RequestCycle.step(RequestCycle.java:1241) at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1316) at org.apache.wicket.RequestCycle.request(RequestCycle.java:493) at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:354) at org.apache.wicket.protocol.http.WicketServlet.doGet(WicketServlet.java:121) at javax.servlet.http.HttpServlet.service(HttpServlet.java:689) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at sun.reflect.GeneratedMethodAccessor488.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:244) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAsPrivileged(Subject.java:517) at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:276) at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:162) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:283) at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:56) at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:189) at java.security.AccessController.doPrivileged(Native Method) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:185) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:563) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:261) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:581) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:613) Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:494) at org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:149) … 37 more Caused by: java.lang.UnsupportedOperationException: FormComponent class org.apache.wicket.markup.html.form.PasswordTextField does not support cookies at org.apache.wicket.markup.html.form.FormComponent.setPersistent(FormComponent.java:956) at com.servoy.j2db.server.headlessclient.SignIn.a(Unknown Source) at com.servoy.j2db.server.headlessclient.SignIn.access$300(Unknown Source) at com.servoy.j2db.server.headlessclient.SignIn$SignInForm.(Unknown Source) at com.servoy.j2db.server.headlessclient.SignIn.(Unknown Source) … 42 more 2008-07-02 20:17 http-8090-2 ERROR org.apache.wicket.RequestCycle Can’t instantiate page using constructor public com.servoy.j2db.server.headlessclient.SignIn() org.apache.wicket.WicketRuntimeException: Can’t instantiate page using constructor public com.servoy.j2db.server.headlessclient.SignIn() at org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:168) at org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:58) at org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.newPage(BookmarkablePageRequestTarget.java:262) at org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.getPage(BookmarkablePageRequestTarget.java:283) at org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.processEvents(BookmarkablePageRequestTarget.java:210) at org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents(AbstractRequestCycleProcessor.java:90) at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1166) at org.apache.wicket.RequestCycle.step(RequestCycle.java:1241) at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1316) at org.apache.wicket.RequestCycle.request(RequestCycle.java:493) at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:354) at org.apache.wicket.protocol.http.WicketServlet.doGet(WicketServlet.java:121) at javax.servlet.http.HttpServlet.service(HttpServlet.java:689) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at sun.reflect.GeneratedMethodAccessor488.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:244) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAsPrivileged(Subject.java:517) at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:276) at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:162) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:283) at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:56) at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:189) at java.security.AccessController.doPrivileged(Native Method) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:185) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:563) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:261) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:581) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:613) Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:494) at org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:149) … 37 more Caused by: java.lang.UnsupportedOperationException: FormComponent class org.apache.wicket.markup.html.form.PasswordTextField does not support cookies at org.apache.wicket.markup.html.form.FormComponent.setPersistent(FormComponent.java:956) at com.servoy.j2db.server.headlessclient.SignIn.a(Unknown Source) at com.servoy.j2db.server.headlessclient.SignIn.access$300(Unknown Source) at com.servoy.j2db.server.headlessclient.SignIn$SignInForm.(Unknown Source) at com.servoy.j2db.server.headlessclient.SignIn.(Unknown Source) … 42 more ---
**Author:** ![rgansevles](https://avatars.discourse-cdn.com/v4/letter/r/3d9bf3/32.png) [@rgansevles](https://forum.servoy.com/u/rgansevles)\ **Post date:** [July 3, 2008, 7:03am UTC](https://forum.servoy.com/t/internal-error/9259/2 "2008-07-03T07:03:23Z")
Marcel, Are you sure your server is running 3.5.6? This should have been fixed in that release. Rob ---
**Author:** ![IT2Be](https://avatars.discourse-cdn.com/v4/letter/i/dc4da7/32.png) [@IT2Be](https://forum.servoy.com/u/IT2Be)\ **Post date:** [July 3, 2008, 7:44am UTC](https://forum.servoy.com/t/internal-error/9259/3 "2008-07-03T07:44:31Z")
![:oops:]( "Embarassed") Apologies The server I run this from has 3.5.6 installed but I forgot to upgrade the developer…