8168774: Polymorhic signature method check crashes javac
Summary: Check for polysig method assumes arity is greater than zero
Reviewed-by: vromero
TwrForVariable4.java:11:14: compiler.err.var.might.not.have.been.initialized: uninitialized
TwrForVariable4.java:20:14: compiler.err.try.with.resources.expr.effectively.final.var: notEffectivellyFinal1
TwrForVariable4.java:26:14: compiler.err.try.with.resources.expr.effectively.final.var: notEffectivellyFinal2
TwrForVariable4.java:31:14: compiler.err.try.with.resources.expr.effectively.final.var: notFinal
4 errors