public class Base {
        protected Base( Object o ) {
        }
    }

class Buggy extends Base {
        Buggy() {
            super( f() );
        }

        static Object f() {
            return null;
        }
    }

    Base b = new Buggy();

Caught: java.lang.VerifyError: (class: Buggy, method: <init> signature: ()V) Expecting to find object/array on stack