Pressing Tab repeatedly could lead to a crash because displayString was unexpectedly set to null. This replaces all such instances with Component.empty()
In addition, I replaced all nearby handlers also set to null with empty lambdas. I don't think these caused any crashes otherwise, as the invoking method was overriden each time, but it's still better to not pass nulls to NotNull-annotated params.
Pressing Tab repeatedly could lead to a crash because
displayStringwas unexpectedly set tonull. This replaces all such instances withComponent.empty()In addition, I replaced all nearby
handlers also set tonullwith empty lambdas. I don't think these caused any crashes otherwise, as the invoking method was overriden each time, but it's still better to not passnulls toNotNull-annotated params.