[richfaces-issues] [JBoss JIRA] Created: (RF-10170) Improve Converter finding if EL expression is semi-resolvable

[Martin Kočí (JIRA)]

Improve Converter finding if EL expression is semi-resolvable
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                 Key: RF-10170
                 URL: https://issues.jboss.org/browse/RF-10170
             Project: RichFaces
          Issue Type: Enhancement
      Security Level: Public (Everyone can see)
          Components: compatibility
    Affects Versions: Future_4.X
         Environment: RichFaces 4 svn rev. 20933
            Reporter: Martin Kočí


example (#{bean.propertyNull} resolves to null):

<h:inputText value="#{bean.propertyNull.zeitangabe}" /> outputs a input field

<r:calendar value="#{bean.propertyNull.zeitangabe}" /> throws value="#{bean.propertyNull.zeitangabe}": Target Unreachable, 'propertyNull' returned null

Problem is in org.richfaces.component.util.SelectUtils.findConverter: method tries to locate a Converter even if informations for this are "uknown". 

Simple solution can be:  find converter only for ValueExpression which leads to not null value, because if no value for "value" ValueExpression :), then no conversion getAsString is necessary (at least is is true if spec does not mandates conversion for null value).



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