RFR: 5080391: ArrayIndexOutOfBounds during "undo" of Right-to-Left text insert

[Alexey Ivanov]

On Fri, 30 Sep 2022 20:44:03 GMT, Phil Race <prr at openjdk.org> wrote:

> And test - which appears to be a straight copy of the sample code in the bug report is sufficient to show there's a bug here and that you are fixing it for that one case of ONE unicode code point but I think the test needs to be more comprehensive - inserting and then undoing at the beginning and end of some existing text. I suspect we have no existing test which would uncover a regression being introduced here, so this test needs to be more comprehensive.

And with some text being inserted in the middle of existing text in the document.

I also wonder if changing component orientation breaks undo/redo with left-to-right text only since RTL component orientation enables bidi support.

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PR: https://git.openjdk.org/jdk/pull/10446