/usr/share/doc/libcommons-collections-java/api/org/apache/commons/collections/iterators/ is in libcommons-collections-java-doc 2.1.1-11.
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/usr/share/doc/libcommons-collections-java/api/org/apache/commons/collections/iterators/ArrayIterator.html
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/usr/share/doc/libcommons-collections-java/api/org/apache/commons/collections/iterators/SingletonIterator.html
/usr/share/doc/libcommons-collections-java/api/org/apache/commons/collections/iterators/SingletonListIterator.html
/usr/share/doc/libcommons-collections-java/api/org/apache/commons/collections/iterators/TransformIterator.html
/usr/share/doc/libcommons-collections-java/api/org/apache/commons/collections/iterators/UniqueFilterIterator.html
/usr/share/doc/libcommons-collections-java/api/org/apache/commons/collections/iterators/package-frame.html
/usr/share/doc/libcommons-collections-java/api/org/apache/commons/collections/iterators/package-summary.html