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<div class="block">The IterationTag interface extends Tag by defining one additional method that controls the reevaluation of its body.

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 A tag handler that implements IterationTag is treated as one that implements Tag regarding the doStartTag() and
 doEndTag() methods. IterationTag provides a new method: <code>doAfterBody()</code>.

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 The doAfterBody() method is invoked after every body evaluation to control whether the body will be reevaluated or
 not. If doAfterBody() returns IterationTag.E