JDK-8043190 is adding clarifications to the JVM specification on super interface initialization.
First, recursively initialize any super class, unchanged.
Then recursively initialize super interfaces that declare a non-abstract instance method in class file interface array order.

Example:
interface I
interface J extends I
class A implements J
interface K extends I
class B extends A implements K
class C implements L

order of initialization: I, J, A, K, B, L, C

In JDK8 this was accomplished by initializing any super interfaces that declare or inherit default methods when initializing all superclasses of a class being initialized.This surprises people by changing the order of superinterface initialization.
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