code: public void assignEmbeddables(Map<Class<?>, ManagedType<?>> embeddables)
      {
          if (this.embeddables == null)
          {
              this.embeddables = embeddables;
          }
          else
          {
              this.embeddables.putAll(embeddables);
          }
      }
docs: Assign embeddables to embeddables collection.
  
  @param embeddables
  the embeddables to set