[jira] [Closed] (TAP5-1672) PropertyDisplay component will swallow NPEs when evaluating the property, leaving no clue about the actual NPE

["Howard M. Lewis Ship (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TAP5-1672?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Howard M. Lewis Ship closed TAP5-1672.
--------------------------------------

       Resolution: Fixed
    Fix Version/s: 5.4

> PropertyDisplay component will swallow NPEs when evaluating the property, leaving no clue about the actual NPE
> --------------------------------------------------------------------------------------------------------------
>
>                 Key: TAP5-1672
>                 URL: https://issues.apache.org/jira/browse/TAP5-1672
>             Project: Tapestry 5
>          Issue Type: Bug
>          Components: tapestry-core
>    Affects Versions: 5.2
>            Reporter: Wulf Wechsung
>            Assignee: Howard M. Lewis Ship
>            Priority: Minor
>              Labels: NPE, propertydisplay
>             Fix For: 5.4
>
>
> Situation:
> A property (prop) on an object is realized by a getter (ie getProp()). The getter throws a NullPointerException on invokation. 
> Observed Behavior:
> Trying to display the property, the propertydisplay component reports an error "Property 'currentlyOverdue' contains a null value in the path." without any trace of the underlying NPE.
> Expected Behavior:
> The error report should include the stack-trace off the NPE and the error message could also be a bit clearer.
> It's possible that propertydisplay also fails to report other exceptions that occur in a getter.



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