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https://issues.apache.org/jira/browse/MYFACES-4140?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16159837#comment-16159837
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Dennis Kieselhorst commented on MYFACES-4140:
---------------------------------------------
Well I'm unsure how to fix it. Simply adding a null check and throw
InvalidViewIdException will probably cause side effects in other cases. The
code already contains a comment from [~lu4242] "Temporally reverted by TCK
issues."
> NullPointerException instead of InvalidViewIdException
> ------------------------------------------------------
>
> Key: MYFACES-4140
> URL: https://issues.apache.org/jira/browse/MYFACES-4140
> Project: MyFaces Core
> Issue Type: Bug
> Affects Versions: 2.3.0-beta
> Reporter: Dennis Kieselhorst
> Priority: Minor
> Fix For: 2.3.0
>
>
> In case of an invalid viewId an NPE is thrown instead of
> InvalidViewIdException. This is reproducible using tobago-example-demo
> (NavigationTree /content/root-dummy.xhtml).
> {noformat}
> Caused by: java.lang.NullPointerException
> at
> org.apache.myfaces.application.ViewHandlerImpl.getViewParameterList(ViewHandlerImpl.java:459)
> at
> org.apache.myfaces.application.ViewHandlerImpl.getBookmarkableURL(ViewHandlerImpl.java:141)
> at
> javax.faces.application.ViewHandlerWrapper.getBookmarkableURL(ViewHandlerWrapper.java:134)
> at
> javax.faces.application.ViewHandlerWrapper.getBookmarkableURL(ViewHandlerWrapper.java:134)
> at
> org.apache.myfaces.tobago.internal.util.RenderUtils.generateUrl(RenderUtils.java:229)
> at
> org.apache.myfaces.tobago.internal.renderkit.renderer.CommandRendererBase.encodeBegin(CommandRendererBase.java:86)
> at
> javax.faces.component.UIComponentBase.encodeBegin(UIComponentBase.java:597)
> at
> javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:527)
> at
> javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:551)
> at
> org.apache.myfaces.tobago.internal.renderkit.renderer.TreeRenderer.encodeEnd(TreeRenderer.java:130)
> at
> javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:675)
> at javax.faces.component.UIData.encodeEnd(UIData.java:1811)
> at
> javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:555)
> at
> javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:551)
> at javax.faces.render.Renderer.encodeChildren(Renderer.java:95)
> {noformat}
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