[seam-issues] [JBoss JIRA] Created: (JBSEAM-4713) EntityConverter should allow empty String

[Cody Lerum (JIRA)]

EntityConverter should allow empty String
-----------------------------------------

                 Key: JBSEAM-4713
                 URL: https://jira.jboss.org/browse/JBSEAM-4713
             Project: Seam
          Issue Type: Bug
          Components: JSF Integration
    Affects Versions: 2.2.1.CR2
         Environment: seam 2.2.1CR2, PrimeFaces
            Reporter: Cody Lerum
             Fix For: 2.2.1.CR3


When using the <s:convertEntity /> tag along with a component such as primefaces autocomplete the EntityConverter will throw a NumberFormatException when it is passed an empty string as JSF is prone to do.

<pf:autoComplete 
       id="fromUserAC" 
       value="#{emailTemplateData.fromUser}"
       widgetVar="fromUserAC" 
       forceSelection="true" 
       completeMethod="#{userLists.searchUsers}" 
       var="_user" 
       itemValue="#{_user}" 
       itemLabel="#{_user.name}" 
       selectListener="#{emailTemplateDataAddUtil.selectFromUser}" 
       onSelectUpdate="fromUser" 
       required="true">
   <s:convertEntity />
</pf:autoComplete>

The solution is to add a .isEmpty() check to the converter.

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