8168774: Polymorhic signature method check crashes javac
Summary: Check for polysig method assumes arity is greater than zero
Reviewed-by: vromero
/*
* @test /nodynamiccopyright/
* @bug 4041948
* @summary javac previously allowed interfaces to inherit methods with
* inconsistent return types.
* @author turnidge
*
* @compile/fail/ref=InconsistentReturn.out -XDrawDiagnostics InconsistentReturn.java
*/
interface I1{
int f();
}
interface I2 {
void f() ;
}
// error: Return types conflict.
interface InconsistentReturn extends I1,I2 { }