RFR: 8090110: Very bad TextArea of performance in a language environment that uses the Chinese character (KANJI)

[Jeanette Winzenburg]

On Fri, 25 Sep 2020 18:29:35 GMT, yosbits <github.com+7517141+yososs at openjdk.org> wrote:

>> beware: all listeners that are manually added by the skin (as opposed to those added via skin.registerXX) must be
>> manually removed again! Also there must be tests added to guard against memory leaks and side-effects when switching
>> the skin. For guidance, see [JDK-8241364](https://bugs.openjdk.java.net/browse/JDK-8241364) and related (fixed and
>> open) issues.
>
> @kleopatra
> It's a very good point, but the original source code seems to have a memory leak problem due to an incomplete
> implementation of dispose (). Checking with the profile tool, it looks like you need a cleanup of over 20 references. I
> think this is a problem that should be fixed in another issue.

agreed that cleanup of the existing leaks (and misbehavior due to missing listener removal is off scope for this :) -
but you must not add new leaks/side-effects in this fix: guarding this change against additional misbehavior definitely
is in scope, IMO.

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PR: https://git.openjdk.java.net/jfx/pull/307