Method Returning Null in Client Only

Classic Servoy
1

I’ve been having quite a strange problem: I’ve written a method to generate HTML building plans (a map showing who’s in what room of the building, basically). It works just fine when I run the method in developer, but returns null when I try to run the method in either a client or headless client.

I’ve attached the stack track from the server log. Does anyone have any idea why this might be happening?

Cheers

2005-08-09 11:59 : Cannot load solution

2005-08-09 11:59 : java.lang.NullPointerException
at com.servoy.j2db.f.if(Unknown Source)
at com.servoy.j2db.FormManager.a(Unknown Source)
at com.servoy.j2db.FormManager.do(Unknown Source)
at com.servoy.j2db.FormManager$3.run(Unknown Source)
at com.servoy.j2db.server.headlessclient.a.invokeLater(Unknown Source)
at com.servoy.j2db.FormManager.propertyChange(Unknown Source)
at javax.swing.event.SwingPropertyChangeSupport.firePropertyChange(SwingPropertyChangeSupport.java:264)
at javax.swing.event.SwingPropertyChangeSupport.firePropertyChange(SwingPropertyChangeSupport.java:232)
at com.servoy.j2db.J2DBGlobals.firePropertyChange(Unknown Source)
at com.servoy.j2db.server.headlessclient.a.if(Unknown Source)
at com.servoy.j2db.ClientState.handleLoadedSolution(Unknown Source)
at com.servoy.j2db.server.headlessclient.a.(Unknown Source)
at com.servoy.j2db.server.headlessclient.HeadlessClientFactory.createSessionBean(Unknown Source)
at com.servoy.j2db.server.headlessclient.HeadlessClientFactory.createSessionBean(Unknown Source)
at org.apache.jsp.mapTest6$jsp._jspService(mapTest6$jsp.java:78)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:202)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:382)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:474)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:201)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2344)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:462)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:163)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1011)
at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1106)
at java.lang.Thread.run(Thread.java:552)

2

mika:
2005-08-09 11:59 : Cannot load solution

This is an error message you usually get when deep-linking a module.

Are you sure the solution is not a module?
Modules can’t be opened by Servoy (Headless) Client. But can by the Developer.

Hope this helps.

3

this has nothing to do with modules.

i think you have a form where the boolean showInMenu is enabled.
This does go wrong in 2.2 it is fixed for 2.2.1

4

Yes, that form does have showInMenu selected.

Thanks for your advice. Is there a scheduled release date for 2.2.1?