expect:
        JavaVersion.current() == current
        JavaVersion.current().java6 == isJava6
        JavaVersion.current().java7 == isJava7
        JavaVersion.current().java8 == isJava8
        JavaVersion.current().java9 == isJava9
        JavaVersion.current().java10 == isJava10
        JavaVersion.current().java11 == isJava11
        JavaVersion.current().java12 == isJava12

                    boolean isJava9 = Boolean.parseBoolean(System.getProperty("isJava9"));
                    String[] splitTestRuntimeClasspath = splitClasspath(System.getProperty("testRuntimeClasspath"));
                    if (isJava9) {
                        String[] splitCliClasspath = splitClasspath(System.getProperty("java.class.path"));

        }
        return stackTrace;
    }

    @SuppressWarnings("Since15")
    private static List<? extends Throwable> extractSuppressed(Throwable throwable) {
        if (isJava7()) {
            return Arrays.asList(throwable.getSuppressed());
        }
        return Collections.emptyList();
    }

    @SuppressWarnings("MixedMutabilityReturnType")