<bean:write name="label">

ParentTag parent =
        (ParentTag)findAncestorWithClass(this, ParentTag.class);
      if (parent == null) {
        throw new JspTagException("this tag is outside of its parent tag");
      }

<%
jspContext.setAttribute("_myWellKnownName", new java.util.LinkedHashMap(), PageContext.REQUEST_SCOPE);
%>

<%
    java.util.LinkedHashMap map = (java.util.LinkedHashMap) jspContext.findAttribute("_myWellKnownName");
%>