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https://issues.apache.org/jira/browse/MYFACES-4333?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17092222#comment-17092222
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Bill Lucy commented on MYFACES-4333:
------------------------------------
[~tandraschko] right, for partialStateSavingDefault the 2.2 impl was already
correct. But in 2.3+ we need to check the current faces version for the newer
versions.
> ElContext#getFunctionMapper Returns NULL
> ----------------------------------------
>
> Key: MYFACES-4333
> URL: https://issues.apache.org/jira/browse/MYFACES-4333
> Project: MyFaces Core
> Issue Type: Bug
> Components: JSR-344, JSR-372
> Affects Versions: 2.2.12, 2.3.6
> Reporter: Volodymyr Siedlecki
> Priority: Minor
> Fix For: 2.2.13, 2.3.7, 3.0.0, 2.3-next-M3
>
> Attachments: JSF22-MyFaces-4333.patch, JSF23-MyFaces-4333-Fix.patch,
> MYFACES-4333.zip
>
>
> {color:#0e101a}Hello,{color}
> {color:#0e101a}When retrieving the functionMapper from the ELContext, null is
> returned.{color}
> {code:java}
> FacesContext facesContext = FacesContext.getCurrentInstance(); ELContext
> elContext = facesContext.getELContext(); FunctionMapper functionMapper =
> elContext.getFunctionMapper(){code}
> {color:#0e101a} A sample application is also attached. It works with the
> reference implementation, but not with MyFaces. {color}
> After looking over the code, I noticed that
> _{color:#0e101a}FacesELContext{color}_ {color:#0e101a}is not initialized with
> a default function mapper, and the
> {color}_{color:#0e101a}FacesELContext{color}_{color:#0e101a}#setFunctionMapper
> was never called. I addressed this by setFunctionMapper in the
> {color}_{color:#0e101a}NamespaceHandler{color}_{color:#0e101a}. Please let me
> know if you have any improvements to this fix. The behavior with my fix
> matches how the reference implementation behaves. {color}
>
> {color:#0e101a}Additionally, this fix worked for version 2.2, but version 2.3
> needed another change with the partialStateSavingDefault variable. I believe
> It's to false by accident when it's checked here: {color}
>
> {code:java}
> partialStateSavingDefault = "2.0".equals(facesVersion) ||
> "2.1".equals(facesVersion) || "2.2".equals(facesVersion) || (facesVersion ==
> null);
> {code}
>
> {color:#0e101a}I wasn't sure whether to add
> {color}_{color:#0e101a}"2.3".equals(facesVersion){color}_{color:#0e101a}, but
> I thought it would be better to create a default state variable and keep it
> within the StateManager. Please advice if this change should also be applied
> to 3.0 & master?
>
> Thank you{color}
>
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