code: @Override
      public String toHtmlString() {
          final Lock lock = sharedObject.getLock(ACCESS_OBJECT).writeLock();
          try {
              lock.lock();
  
              final String printStructure = getPrintStructure(
                      getSharedObject().isChildModified());
  
              if (parent == null) {
                  sharedObject.setChildModified(false);
              }
  
              return printStructure;
          } finally {
              lock.unlock();
          }
      }
docs: /*
  (non-Javadoc)
  
  @see com.webfirmframework.wffweb.tag.TagBase#toHtmlString()
  
  @since 1.0.0
  
  @author WFF