8269871: CellEditEvent: must not throw NPE in accessors

[kleopatra]

The issue is unguarded access to tablePosition though it might be null (since JDK-8120610

The fix is to check against null in each accessor. Also required to fix the default onEditCommit handlers in Tree/TableColumn to really cope with null TablePostion on the event.

Added tests that failed/pass before/after the fix.

Note that there was an old test (in Tree/TableColumnTest each), that failed after the fix because it expected the NPE. Fixed by removing the expected parameter.

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Progress

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Issue

• JDK-8269871: CellEditEvent: must not throw NPE in accessors

Reviewers

• Marius Hanl (@Maran23 - Author) 🔄 Re-review required (review applies to b6540a2)
• Ajit Ghaisas (@aghaisas - Reviewer)

Reviewing

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[mlbridge]

Webrevs

• 01: Full - Incremental (7082541d)
• 00: Full (b6540a2d)

[Maran23]

Looks good to me.
Good to see this fixed, I remember I had some NPEs in the past because of a null table position. 😃

[aghaisas]

The fix looks good.

Minor : Two comments from tests need to be removed.

[openjdk]

@kleopatra This change now passes all automated pre-integration checks.

ℹ️ This project also has non-automated pre-integration requirements. Please see the file CONTRIBUTING.md for details.

After integration, the commit message for the final commit will be:

8269871: CellEditEvent: must not throw NPE in accessors

Reviewed-by: aghaisas

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At the time when this comment was updated there had been 2 new commits pushed to the master branch:

• 2267b11: 8273071: SeparatorSkin: must remove child on dispose
• e931501: 8269081: Tree/ListViewSkin: must remove flow on dispose

Please see this link for an up-to-date comparison between the source branch of this pull request and the master branch.
As there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to avoid this automatic rebasing, please check the documentation for the /integrate command for further details.

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[kleopatra]

/integrate

[openjdk]

Going to push as commit 78ae4a8.
Since your change was applied there have been 2 commits pushed to the master branch:

• 2267b11: 8273071: SeparatorSkin: must remove child on dispose
• e931501: 8269081: Tree/ListViewSkin: must remove flow on dispose

Your commit was automatically rebased without conflicts.

[openjdk]

@kleopatra Pushed as commit 78ae4a8.

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