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https://issues.apache.org/jira/browse/MYFACES-3591?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13443779#comment-13443779
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Leonardo Uribe commented on MYFACES-3591:
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I have checked the example and the problem here is the behavior for
f:loadBundle itself. In some cases, f:loadBundle is not executed, and the EL
expression is evaluated, returning an empty string (by EL coercion rules).
Since f:loadBundle comes from JSF 1.1 and since JSF 1.2 it is possible to set
message bundles in faces-config.xml, this behavior was silently ignored
(because the problem is only visible when f:loadBundle is used). It sounds
reasonable to check for empty string in this case and if that so, check if the
EL expression is set and use it. I think the current behavior is correct, but
the proposed solution is convenient and cause no side effects.
> Labels with EL expressions are not shown in messages if partial state saving
> is disabled
> ----------------------------------------------------------------------------------------
>
> Key: MYFACES-3591
> URL: https://issues.apache.org/jira/browse/MYFACES-3591
> Project: MyFaces Core
> Issue Type: Bug
> Affects Versions: 2.1.8
> Environment: tested with tomhawk20-1.1.12 and 1.1.13.
> and with tomcat 6.0.35 and 7.0.29
> Reporter: Michael Heinen
> Attachments: zMsgs.war
>
>
> I have a simple form with two required fields.
> First field has label with plain text.
> Second field has a label with an EL expression.
> The label with the EL expression is not shown in messages if
> javax.faces.PARTIAL_STATE_SAVING is set to false.
> The error occurs with myfaces 2.1.8.
> It works correctly with mojarra 2.1.11
> Sample:
> <h:form id="myform">
> <h:inputText id="name" value="#{myController.name}" required="true"
> label="Hardcoded name" />
> <h:inputText id="password" value="#{myController.password}" required="true"
> label="#{msgs['password']}"/>
> <h:commandButton id="loginButton"
> action="#{myController.login}"
> value="Login"/>
> <t:messages id="idMsgs"
> showDetail="false"
> showSummary="true"
> replaceIdWithLabel="true"/>
> </h:form>
> This is currently a blocker for an update from JSF 1.2 to 2.1
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