fragment, or to be
 of type JspFragment in the TLD.
 <p>
 The definition of the JSP fragment must only contain template text and JSP action elements. In other words, it must
 not contain scriptlets or scriptlet expressions. At translation time, the container generates an implementation of
 the JspFragment abstract class capable of executing the defined fragment.
 <p>
 A tag handler can invoke the fragment zero or more times, or pass it along to other tags, before returning. To
 communicate values to/from a 