code: public void setVirtualNodes(java.util.Collection<VirtualNodeRef> virtualNodes) {
          if (virtualNodes == null) {
              this.virtualNodes = null;
              return;
          }
  
          this.virtualNodes = new java.util.ArrayList<VirtualNodeRef>(virtualNodes);
      }
docs: <p>
  The list of existing virtual nodes for the specified service mesh.
  </p>
  
  @param virtualNodes
  The list of existing virtual nodes for the specified service mesh.