[jira] [Closed] (TAP5-1401) 5.2.4 Form's getDefaultTracker() incompatible with 5.1.0.5

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

     [ https://issues.apache.org/jira/browse/TAP5-1401?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Howard M. Lewis Ship closed TAP5-1401.
--------------------------------------

    Resolution: Invalid
      Assignee: Howard M. Lewis Ship

Its unfortunate that sometimes components must implement public methods that are not intended to be invoked except under certain situations (perhaps we need to make that a @Property, or create a new annotation to identify "hands off" methods).  In any case, see the workaround in the comments.

> 5.2.4 Form's getDefaultTracker() incompatible with 5.1.0.5
> ----------------------------------------------------------
>
>                 Key: TAP5-1401
>                 URL: https://issues.apache.org/jira/browse/TAP5-1401
>             Project: Tapestry 5
>          Issue Type: Bug
>          Components: documentation, tapestry-core
>    Affects Versions: 5.2.4
>            Reporter: Michael Gentry
>            Assignee: Howard M. Lewis Ship
>            Priority: Minor
>
> In Tapestry 5.1.0.5, you can have code such as:
> @Component
> private Form inputs;
> ...
> if (inputs.getDefaultTracker().getHasErrors())
> ...
> This fails in 5.2.4 because getDefaultTracker() returns null if there are no errors.  This appears to be related to this closed bug:
> https://issues.apache.org/jira/browse/TAP5-979
> Perhaps getDefaultTracker() should check for a null and return an empty one to be backwards compatible with 5.1.0.5?  Alternatively, document it as a known incompatibility in the release notes.

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