code: public static void onErrorDropped(Consumer<? super Throwable> c) {
  		Objects.requireNonNull(c, "onErrorDroppedHook");
  		log.debug("Hooking new default : onErrorDropped");
  
  		synchronized(log) {
  			if (onErrorDroppedHook != null) {
  				@SuppressWarnings("unchecked") Consumer<Throwable> _c =
  						((Consumer<Throwable>)onErrorDroppedHook).andThen(c);
  				onErrorDroppedHook = _c;
  			}
  			else {
  				onErrorDroppedHook = c;
  			}
  		}
  	}
docs: Override global error dropped strategy which by default bubble back the error.
  <p>
  The hook is cumulative, so calling this method several times will set up the hook
  for as many consumer invocations (even if called with the same consumer instance).
  
  @param c the {@link Consumer} to apply to dropped errors