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The Release notes at https://netbeans.org/community/releases/80/relnotes.html need to include documentation of a workaround for Bug 239388 "JavaFX 7u45/7u51 Project: Successfully built project won't run or debug" Reason: The basis for the waiver was that the workaround would be well-documented AFAIK. My apologies if I directed this to the wrong product/component.
Confirmed that the issue is mentioned in the release notes.
Thank you Ken!
The workaround is documented at https://netbeans.org/community/releases/80/relnotes.html#known_issues-javafx Thanks!