8168774: Polymorhic signature method check crashes javac
Summary: Check for polysig method assumes arity is greater than zero
Reviewed-by: vromero
CaptureInSubtype.java:38:17: compiler.err.override.incompatible.ret: (compiler.misc.cant.override: m(), CaptureInSubtype.ShowFlaw, m(), CaptureInSubtype.SuperOfShowFlaw), CaptureInSubtype.Flaw<?>, CaptureInSubtype.SuperOfFlaw<java.util.List<?>>
1 error