RFR: 8264728: When use chinese IME, the candidate box isn't moved with caret of JTextArea [v2]

[柳鲲鹏]

On Wed, 28 Jun 2023 22:05:50 GMT, Nikita Provotorov <duke at openjdk.org> wrote:

> Have you tried to use just _java.awt.Component#getLocationOnScreen_?

The document say:"The x and y coordinates are relative to the focus window".

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PR Review Comment: https://git.openjdk.org/jdk/pull/13055#discussion_r1302262269