Stack trace is in first message. It's occuring in UISelectMany.getConvertedValue
which is definitly in the myfaces lib. I put debug in all my functions calls and don't see that being called yet. -Steve On 8/17/05, Rahul Pilani <[EMAIL PROTECTED]> wrote: > Can you paste the stacktrace. It would be more helpful to know where exactly > is the nullpointer exception happening.. > > It might not be the component's fault. This is the behaviour I was > experiencing with myfaces 1.09 , might be something similar in your case. > > I had a bunch of different radio buttons in a datatable, all disconnected > and having an individual selectOneRadio. For each radio that was not > selected, myfaces was setting the corresponding backing bean value to null. > > And my application was crashing because if some earlier radio button was > clicked, but not a later one, then the end result would be a null value in > the backing bean due to the later radio button. > > Hope this helps.. > > Rahul > > > -----Original Message----- > From: steve rock [mailto:[EMAIL PROTECTED] > Sent: Wednesday, August 17, 2005 3:55 PM > To: MyFaces Discussion > Subject: Re: h:selectManyCheckbox throwing NullPointerException when none > selected. Why? > > Second request. Stopping me from implementing a new feature in production. > > I basically have a list of checkboxes on a form that throws an error > if none of them are selected. I need to be able to not have to select > any checkboxes. Any ideas? > > -Steve > > On 8/14/05, steve rock <[EMAIL PROTECTED]> wrote: > > Here's my component. > > > > <h:selectManyCheckbox id="stationFeatures" layout="pageDirection" > > value="#{userTool.newUserFeatures}" > > > <f:selectItems value="#{userTool.featureSelectItems}"/> > > </h:selectManyCheckbox> > > > > It presents a list of radio stations a user can select. However as > > part of the business requirements they can have none selected. When I > > select none and submit the form, I get a NullPointerException. How > > come? > > > > > > Here is the stack trace: > > > > java.lang.NullPointerException > > at > org.apache.myfaces.renderkit._SharedRendererUtils.getConvertedUISelectManyVa > lue(_SharedRendererUtils.java:118) > > at > org.apache.myfaces.renderkit.RendererUtils.getConvertedUISelectManyValue(Ren > dererUtils.java:792) > > at > org.apache.myfaces.renderkit.html.HtmlCheckboxRendererBase.getConvertedValue > (HtmlCheckboxRendererBase.java:260) > > at > javax.faces.component.UISelectMany.getConvertedValue(UISelectMany.java:295) > > at javax.faces.component.UIInput.validate(UIInput.java:291) > > at > javax.faces.component.UISelectMany.validate(UISelectMany.java:284) > > at > javax.faces.component.UIInput.processValidators(UIInput.java:166) > > at > javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java > :427) > > at > javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java > :427) > > at > javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java > :427) > > at javax.faces.component.UIForm.processValidators(UIForm.java:66) > > at > javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java > :427) > > at > javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:162) > > at > org.apache.myfaces.lifecycle.LifecycleImpl.processValidations(LifecycleImpl. > java:208) > > at > org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:92) > > at javax.faces.webapp.FacesServlet.service(FacesServlet.java:109) > > at > org.apache.myfaces.webapp.MyFacesServlet.service(MyFacesServlet.java:70) > > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application > FilterChain.java:237) > > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh > ain.java:157) > > at > com.m2g.stationtools.web.filters.StationToolsRequestContextFilter.doFilter(S > tationToolsRequestContextFilter.java:49) > > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application > FilterChain.java:186) > > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh > ain.java:157) > > at > org.apache.myfaces.component.html.util.ExtensionsFilter.doFilter(ExtensionsF > ilter.java:112) > > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application > FilterChain.java:186) > > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh > ain.java:157) > > at > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja > va:214) > > at > org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex > t.java:104) > > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) > > at > org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContext > Valve.java:198) > > at > org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja > va:152) > > at > org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex > t.java:104) > > at > org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssoci > ationValve.java:72) > > at > org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex > t.java:102) > > at > org.jboss.web.tomcat.security.JBossSecurityMgrRealm.invoke(JBossSecurityMgrR > ealm.java:275) > > at > org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex > t.java:102) > > at > org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase > .java:540) > > at > org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex > t.java:102) > > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) > > at > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137 > ) > > at > org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex > t.java:104) > > at > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117 > ) > > at > org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex > t.java:102) > > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) > > at > org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java > :109) > > at > org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex > t.java:104) > > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520) > > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929) > > at > org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160) > > at > org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799) > > at > org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConne > ction(Http11Protocol.java:705) > > at > org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577) > > at > org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav > a:683) > > at java.lang.Thread.run(Thread.java:534) > > > >
