This example has the same result in Scala 2, though in Java there is one difference that relates to the fact that Java (unlike Scala) does not support declaration-site variance

Example3h.java

ArrayList<JavaBean<Object>> beanList1 = new ArrayList(Arrays.asList(bean1, bean2, bean3));

public <A> void polySetAllBeansToFirst(List<JavaBean<A>> beanList) {
  beanList.forEach((bean) -> bean.setTheA(beanList.get(0).getTheA()));
}

polySetAllBeansToFirst(beanList1);
// ^ We can't do this in Scala, because we can't even construct beanList1