RFR: 8259235: javac crashes while attributing super method invocation
Vicente Romero
vromero at openjdk.java.net
Wed Feb 3 00:57:44 UTC 2021
On Tue, 5 Jan 2021 16:47:26 GMT, Jan Lahoda <jlahoda at openjdk.org> wrote:
> Code like:
> public class SuperMethodCallBroken extends Undef implements I {
> public void test() {
> I.super.test();
> }
> }
> interface I {
> public default void test() {}
> }
>
> crashes javac. The reason is that when `I.super` is being attributed, the interfaces of the enclosing class are pruned to remove subtypes - but `Undef` is erroneous and is a subtype of every type. So `I` is removed from the list of interfaces to check, and javac crashes then.
>
> The proposed fix is to ignore erroneous supertypes when looking for subtypes.
looks good
-------------
Marked as reviewed by vromero (Reviewer).
PR: https://git.openjdk.java.net/jdk/pull/1945
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