Java: Add query to detect non-case labels in switch statements #19998
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tamasvajk
added
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owen-mc
reviewed
Jul 9, 2025
subatoi
previously approved these changes
Jul 10, 2025
owen-mc
approved these changes
Jul 10, 2025
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Tagging @knewbury01 for awareness. |
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This pull request introduces a new CodeQL query for detecting non-case labels in Java
switchstatements, which can be confusing or indicative of bugs.This query was migrated from the internal repo. I somewhat changed the query to report two alert messages depending on whether the found label is used or not.
I've manually checked autofix suggestions on a couple of repos. Autofix can suggest both the trivial missing
casekeyword, and also can refactor the code, and move it into a separate method, and then call that method. (I guess the latter has some limitations, but my samples were relatively simple)