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https://issues.apache.org/jira/browse/MYFACES-4646?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Melloware resolved MYFACES-4646.
--------------------------------
    Resolution: Fixed

> Incorrect formatting on String built by ValidatorException
> ----------------------------------------------------------
>
>                 Key: MYFACES-4646
>                 URL: https://issues.apache.org/jira/browse/MYFACES-4646
>             Project: MyFaces Core
>          Issue Type: Bug
>    Affects Versions: 2.3-next-M8, 4.0.1
>            Reporter: Markus Jung
>            Priority: Minor
>             Fix For: 2.3.11, 4.0.2, 2.3-next-M9, 4.1.0, 5.0.0
>
>
> See this example test:
> {code:java}
> @Test
> public void facesMessageEmptyDetail()
> {
>     FacesMessage message = new FacesMessage("Summary", "");
>     ValidatorException exception = new ValidatorException(message);
>     assertEquals("Summary", exception.getMessage());
> } {code}
>  
> It currenty fails as the Exception message being built is "Summary: " because 
> ValidatorException#facesMessageToString only [only checks for 
> null|https://github.com/apache/myfaces/blob/main/api/src/main/java/jakarta/faces/validator/ValidatorException.java#L78],
>  empty strings are not being taken care of.
> Actually, if you create a FacesMessage with detail=null it will [return the 
> summary as the 
> detail|https://github.com/apache/myfaces/blob/main/api/src/main/java/jakarta/faces/application/FacesMessage.java#L218]



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