if (oldNullability && !newNullability) {
                    errors << "Parameter $idx from null accepting to non-null accepting breaking change".toString()
                } else if (!oldNullability && newNullability) {
                    warnings << "Parameter $idx nullability changed from non-nullable to nullable".toString()
                }
            }
        }

        def rule = withContext(new SinceAnnotationMissingRule([:]))
        def jApiMethod = Stub(JApiMethod)
        jApiMethod.name >> implicitMethod
        jApiMethod.jApiClass >> jApiClassifier
        jApiMethod.parameters >> paramTypes.collect { paramStub(it) }

        when:
        sourceFile.text = """
            public enum $TEST_INTERFACE_SIMPLE_NAME {
            }
        """

        then: