Josh Davis created MYFACES-4007:
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Summary: HtmlSelectOneMenu using previous value when setting the
dropdown to the empty select item
Key: MYFACES-4007
URL: https://issues.apache.org/jira/browse/MYFACES-4007
Project: MyFaces Core
Issue Type: Bug
Affects Versions: 2.1.16
Reporter: Josh Davis
The issue occurs when using either #{null} or the empty string in a selectItem
for the selectOneMenu control. If you then save a value for the selectOneMenu
and choose to edit it again and change the value to the empty selection item
the original value is used rather than the empty submitted one. We are
currently using the property that treats the empty string as null so it makes
sense that both behave the same. Using " " instead of the empty string allows
the save to work properly but then we have to deal with this hack in our whole
code base.
My thought (not having in depth knowledge of the myfaces source) is that the
issue is in the HtmlRenderUtils.java class starting on line 457. It first
checks the the submittedValue which is null and then the next check is that if
the value is null it then calls the components getValue() method which returns
the old value. Is this the intended behavior for a null value and if so what
should we be doing for empty selectItems?
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