jdk.test.lib.Utils::runAndCheckException error

test/lib/jdk/test/lib/Utils.java

    public static void runAndCheckException(Runnable runnable, Consumer<Throwable> checkException) {
        try {
            runnable.run();
            checkException.accept(null);
        } catch (Throwable t) {
            checkException.accept(t);
        }
    }

Suppose checkException.accept(null) throws a Throwable itself it will be caught and accepted again.

Also, since this method is mainly used to check for exceptions thrown by runnable, it's better to use ThrowingRunnable (defined in the same source file) than Runnable.