On 2018/05/24 06:42:48, Yasser Zamani <yasserzam...@apache.org> wrote:
>
> It seems IBM JDK 8 has different behavior than Oracle or OpenJDK 8. Your
> exception claims that JDK is not able to call abstract method size on
> LinkedKeySet but here, Oracle and OpenJDK 8 are able to run:
>
> LinkedHashMap lhm = new LinkedHashMap();
> Object ks = LinkedHashMap.class.getMethod("keySet").invoke(lhm);
> System.out.println("COPY ME 1: " + ks.getClass());
> Method m = AbstractCollection.class.getMethod("size");
> System.out.println("COPY ME 2: " + m);
> Object s = m.invoke(ks);
> System.out.println("COPY ME 3: " + s);
>
> They prints:
>
> COPY ME 1: class java.util.LinkedHashMap$LinkedKeySet
> COPY ME 2: public abstract int java.util.AbstractCollection.size()
> COPY ME 3: 0
>
> which means they're able! I don't know if IBM violates Java
> Specification here or Oracle and OpenJDK do. Are you able to ask IBM why
> above piece of code fails on their JDK 8 and pass on 7?
I'm looking for a way to pursue with IBM Java people.
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