When I was working on [JDK-8369327](https://bugs.openjdk.org/browse/JDK-8369327) I got a suggestion to update the code that disables unnecessary events: https://github.com/openjdk/jdk/pull/27682#discussion_r2487686109
After checking that code more closely, I found that it does not work in all cases. The checks were first added in [JDK-7125456](https://bugs.openjdk.org/browse/JDK-7125456). It looks like only the case for the select method was fixed. Other cases still cause unnecessary events, and even more events happen when trying to add multi selection mode: https://github.com/openjdk/jdk/pull/27682#issuecomment-3487434403 So I made a new bug for this issue and fixed it separately. The [spec](https://github.com/openjdk/jdk/blob/8531fa146be1da5e96c0f23091882a27c67d7893/src/java.desktop/share/classes/java/awt/List.java#L899): * Adds the specified item listener to receive item events from * this list. Item events are sent in response to user input, but not * in response to calls to {@code select} or {@code deselect}. The new test checks most of the methods in the `java.awt.List` class. It passes on linux/windows, confirming that the same behavior is implemented in other toolkits (unfortunately on linux it is not stable enough so I had to problemlist it due to [JDK-8201307](https://bugs.openjdk.org/browse/JDK-8201307)). The test only checks for programmatic changes to the list. I am sure that if I change it to test mix of programmatic/user changes it will fail. I will work on that in a follow up bug. @aivanov-jdk @azvegint please take a look ------------- Commit messages: - Disable the new test on Linux due to 8201307 - Merge branch 'openjdk:master' into JDK-8371657 - 8371657: [macosx] Programmatically selecting/deselecting List item triggers an ItemEvent Changes: https://git.openjdk.org/jdk/pull/28245/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=28245&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8371657 Stats: 215 lines in 3 files changed: 202 ins; 0 del; 13 mod Patch: https://git.openjdk.org/jdk/pull/28245.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/28245/head:pull/28245 PR: https://git.openjdk.org/jdk/pull/28245
