NPE in UIParameter when value resolves to null
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Key: MYFACES-2663
URL: https://issues.apache.org/jira/browse/MYFACES-2663
Project: MyFaces Core
Issue Type: Bug
Components: JSR-314
Affects Versions: 2.0.1-SNAPSHOT
Reporter: Jan-Kees van Andel
When I have a null value in an <f:param value="#{expr.that.evaluates.to.null}"
/> tag, I get the following NPE when rendering:
java.lang.NullPointerException
at
org.apache.myfaces.shared_impl.renderkit.html.HtmlRendererUtils.getOutcomeTargetLinkHref(HtmlRendererUtils.java:1883)
at
org.apache.myfaces.shared_impl.renderkit.html.HtmlLinkRendererBase.renderOutcomeLinkStart(HtmlLinkRendererBase.java:742)
at
org.apache.myfaces.shared_impl.renderkit.html.HtmlLinkRendererBase.encodeBegin(HtmlLinkRendererBase.java:123)
at
javax.faces.component.UIComponentBase.encodeBegin(UIComponentBase.java:430)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:605)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:614)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:614)
at
org.apache.myfaces.view.facelets.FaceletViewDeclarationLanguage.renderView(FaceletViewDeclarationLanguage.java:1117)
at
org.apache.myfaces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:231)
at
org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:122)
at
org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:207)
at
org.apache.myfaces.extensions.scripting.jsf.dynamicdecorators.implemetations.LifefcycleProxy.render(LifefcycleProxy.java:74)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:191)
at
org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:502)
I don't know what the spec says or what Mojarra does, but I think we should at
least do better than a NPE, for example appending an empty string to the
parameter list...
Any ideas?
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