code: public void setMapping(java.util.Collection<MappingEntry> mapping) {
          if (mapping == null) {
              this.mapping = null;
              return;
          }
  
          this.mapping = new java.util.ArrayList<MappingEntry>(mapping);
      }
docs: <p>
  A list of mappings to the specified targets.
  </p>
  
  @param mapping
  A list of mappings to the specified targets.