[MYFACES-157] Null pointer exception in selectManyListbox when using converter

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Duplicate
• Affects Version/s: 1.0.9m9
• Fix Version/s: 1.0.9m9
• Environment: Windows XP SP2
• Assignee: Manfred Geiler
• Reporter: Whitney Hunter
• Created: 01/Apr/05 06:12
• Updated: 17/Apr/06 20:48
• Resolved: 07/Apr/05 04:44

Description

I believe that this is a new bug in 1.0.9. It seems to not exist in 1.0.8.

When I have jsp code like this:

<f:view>
<h:form>
<h:panelGrid columns="1">
<h:selectManyListbox>
<f:selectItem itemLabel="one" itemValue="one" />
<f:selectItem itemLabel="two" itemValue="two" />
<f:selectItem itemLabel="three" itemValue="three" />
<f:converter converterId="converter" />
</h:selectManyListbox>
<h:commandButton value="submit"
actionListener="#

{controller.submit}

" />
</h:panelGrid>
</h:form>
</f:view>

I get a NullPointerException when I submit the form without selecting anything in the list box (no problem when a selection is made).

Here is the stack trace:

java.lang.NullPointerException
at org.apache.myfaces.renderkit._SharedRendererUtils.getConvertedUISelectManyValue(_SharedRendererUtils.java:151)
at org.apache.myfaces.renderkit.RendererUtils.getConvertedUISelectManyValue(RendererUtils.java:792)
at org.apache.myfaces.renderkit.html.HtmlListboxRendererBase.getConvertedValue(HtmlListboxRendererBase.java:143)
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.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.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
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(StandardValveContext.java:104)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.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(StandardValveContext.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$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:534)