public static void onErrorDropped(Consumer<? super Throwable> c){
  log.info("Hooking new default : onErrorDropped");
  onErrorDroppedHook=Objects.requireNonNull(c,"onErrorDroppedHook");
}

public static void onErrorDropped ( Consumer < ? super Throwable > c ) { log . info ( "Hooking new default : onErrorDropped" ) ; onErrorDroppedHook = Objects . requireNonNull ( c , "onErrorDroppedHook" ) ; }
override global error dropped strategy which by default bubble back the error .
