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From "Roger Whitcomb (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PIVOT-997) Deprecate (and eventually remove) the WTKListenerList class, which is currently empty
Date Wed, 17 May 2017 18:48:04 GMT

    [ https://issues.apache.org/jira/browse/PIVOT-997?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16014607#comment-16014607
] 

Roger Whitcomb commented on PIVOT-997:
--------------------------------------

Also remove inadvertent changes for TextInputMethodListener, which are part of another submission.
Sending        wtk/src/org/apache/pivot/wtk/Component.java
Transmitting file data .done
Committing transaction...
Committed revision 1795444.


> Deprecate (and eventually remove) the WTKListenerList class, which is currently empty
> -------------------------------------------------------------------------------------
>
>                 Key: PIVOT-997
>                 URL: https://issues.apache.org/jira/browse/PIVOT-997
>             Project: Pivot
>          Issue Type: Improvement
>          Components: wtk
>    Affects Versions: 2.1
>         Environment: All
>            Reporter: Roger Whitcomb
>            Assignee: Roger Whitcomb
>            Priority: Minor
>
> The WTKListenerList class was originally added as a subclass of ListenerList, but with
thread-safety checks in it (basically checking that all the operations were performed on the
Event Dispatch Thread (EDT) or "main" during startup).  All these checks were removed some
time ago, so that component hierarchies could be built "offline", that is in a background
thread, either by BXMLSerializer, or programmatically.  This left WTKListenerList as an empty
class, but with comments to the effect that it was used to provide thread safety checks....
This is confusing, and unnecessary.  So, I propose to deprecate the class in version 2.1,
replacing all the internal references with just "ListenerList", and so the class can be removed
at some point after that.
> Note: deprecating it in the 2.0.x branch is not really an option, since it means the
build gets 100s of warnings about the deprecation, which is not good for a release branch.



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