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

[yosbits]

On Fri, 25 Sep 2020 19:01:35 GMT, Jeanette Winzenburg <fastegal at openjdk.org> wrote:

>> @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.

Added the **Next Step** paragraph to the PR overview.

I think it is necessary to judge this step before fixing the resource leak. The existing code is an incomplete
implementation of dispose, assuming the development of MULTIPLE NODES mode.

@kleopatra
TextArea setSkin is not supported. Therefore, there is no existing application that depends on it. I can't write
additional tests for incomplete implementations (it always fails).

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