[ http://issues.apache.org/jira/browse/MYFACES-157?page=history ]
Whitney Hunter updated MYFACES-157:
-----------------------------------
Attachment: _SharedRendererUtils.java
_SharedRendererUtils.java
It looks like the NullPointerException is being caused by the fact that the
submittedValue parameter to getConvertedUISelectManyValue is null when no
elements are selected the list box. This causes the call(s) to
submittedValue.length() to hurl. I have patched the two _SharedRendererUtils
classes to check for this condition.
> Null pointer exception in selectManyListbox when using converter
> ----------------------------------------------------------------
>
> Key: MYFACES-157
> URL: http://issues.apache.org/jira/browse/MYFACES-157
> Project: MyFaces
> Type: Bug
> Versions: 1.0.9 beta
> Environment: Windows XP SP2
> Reporter: Whitney Hunter
> Priority: Critical
> Attachments: _SharedRendererUtils.java, _SharedRendererUtils.java
>
> 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)
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