code: public ArgumentListBuilder addKeyValuePairs(String prefix, Map<String,String> props) {
          for (Entry<String,String> e : props.entrySet())
              addKeyValuePair(prefix, e.getKey(), e.getValue(), false);
          return this;
      }
docs: Adds key value pairs as "-Dkey=value -Dkey=value ..."
  
  {@code -D} portion is configurable as the 'prefix' parameter.
  @since 1.114