code: public boolean isRoundingAvailable(String roundingId, String... providers) {
          return isRoundingAvailable(
                  RoundingQueryBuilder.of().setProviderNames(providers).setRoundingName(roundingId).build());
      }
docs: Checks if a {@link javax.money.MonetaryRounding} is available given a roundingId.
  
  @param roundingId The rounding identifier.
  @param providers  the providers and ordering to be used. By default providers and ordering as defined in
  #getDefaultProviders is used.
  @return true, if a corresponding {@link javax.money.MonetaryRounding} is available.
  @throws IllegalArgumentException if no such rounding is registered using a
  {@link javax.money.spi.RoundingProviderSpi} instance.