`AccessibleText.getBeforeIndex` method returns `null for last characte`r due to the **wrong boundary value condition check**. This method returns `null` when the `passed index parameter` is equal to `text's length` which is incorrect. `getBeforeIndex` method should return `null` only if the **passed index parameter is less than 0 and greater than the text's length**.
After modifying the condition check, expected character is returned. Test is added to verify the check, ------------- Commit messages: - TextComponent's getBeforeIndex boundary value check fix Changes: https://git.openjdk.org/jdk/pull/25941/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25941&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8360070 Stats: 61 lines in 2 files changed: 59 ins; 0 del; 2 mod Patch: https://git.openjdk.org/jdk/pull/25941.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/25941/head:pull/25941 PR: https://git.openjdk.org/jdk/pull/25941
