* priority queue will be ordered according to the same ordering. Otherwise, this priority queue
   * will be ordered according to the {@linkplain Comparable natural ordering} of its elements.
   *
   * @param c the collection whose elements are to be placed into this priority queue
   * @throws ClassCastException if elements of the specified collection cannot be compared to one
   *     another according to the priority queue's ordering

                "Field finalField: From non-nullable to nullable breaking change.",
                "Method com.example.Source.foo(): From non-null returning to null returning breaking change."
            )
            assertHasNoWarning()
            assertHasNoInformation()
        }
    }

    @Test
    fun `from non-null returning to null returning is breaking (kotlin)`() {

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