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Fix NPE in GroupStateTriggerHandler and GroupCommandTriggerHandler #3966

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merged 2 commits into from
Dec 27, 2023
Merged

Fix NPE in GroupStateTriggerHandler and GroupCommandTriggerHandler #3966

merged 2 commits into from
Dec 27, 2023

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J-N-K
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@J-N-K J-N-K commented Dec 27, 2023

Reported on the community forum. The handler checks if the item's group names contains the configured value. A null group name results in the NPW during that check.

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Fix NPE in GroupStateTriggerHandler and GroupCommandTriggerHandler
d3d6936 
Reported on the community forum. The handler checks if the item's group names contains the configured value. A `null` group name results in the NPW during that check.

Signed-off-by: Jan N. Klug <github@klug.nrw>
@J-N-K J-N-K added the bug An unexpected problem or unintended behavior of the Core label Dec 27, 2023
@J-N-K J-N-K requested a review from a team as a code owner December 27, 2023 12:04
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This pull request has been mentioned on openHAB Community. There might be relevant details there:

https://community.openhab.org/t/openhab-4-1-release-discussion/152252/76

wborn
wborn approved these changes Dec 27, 2023
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Thanks for the fix!
Maybe it is also easy to add unit tests for this?

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J-N-K commented Dec 27, 2023

What should be covered by that test? The "real" problem is that we don't validate the trigger configurations before we create the modules.

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wborn commented Dec 27, 2023

What should be covered by that test?

Based on the changes the tests could check that a warning is logged whenever the groupName is missing and no NPE is thrown when the receive method is called.
Then if someone in the future removes the check or messes up the logic the tests would fail.

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add tests
4fb539a 
Signed-off-by: Jan N. Klug <github@klug.nrw>
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J-N-K commented Dec 27, 2023

Done

wborn
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Thanks!

@wborn wborn merged commit bb7a0da into openhab:main Dec 27, 2023
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@wborn wborn added this to the 4.2 milestone Dec 27, 2023
@J-N-K J-N-K deleted the npe-grouptriggerhandler branch December 27, 2023 22:42
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@J-N-K : is it something to backport in branch 4.1.x ?

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