/**
* Revert to the previous Namespace context.
*
* <p>Normally, you should pop the context at the end of each XML element. After popping the
* context, all Namespace prefix mappings that were previously in force are restored.
*
* <p>You must not attempt to declare additional Namespace prefixes after popping a context,
* unless you push another context first.
*
* @see #pushContext
*/
public void popContext() {
Context2 parentContext = currentContext.getParent();
if (parentContext == null) throw new EmptyStackException();
else currentContext = parentContext;
}
