code: public EarDescriptorBuilder addWeb(String filename, String context) {
          Map.Entry<String, String> entry = new AbstractMap.SimpleEntry<String, String>(filename, context);
          this.webs.add(entry);
          return this;
      }
docs: Adds WEB module to descriptor.
  
  @param filename name of WAR to add
  @param context web context to set for WEB module
  @return this object