995          * Must revert from AbstractSet's impl to AbstractCollection's, as

   995          * Must revert from AbstractSet's impl to AbstractCollection's, as

   996          * the former contains an optimization that results in incorrect

   996          * the former contains an optimization that results in incorrect

   997          * behavior when c is a smaller "normal" (non-identity-based) Set.

   997          * behavior when c is a smaller "normal" (non-identity-based) Set.

   998          */

   998          */

   999         public boolean removeAll(Collection<?> c) {

   999         public boolean removeAll(Collection<?> c) {

  1000             boolean modified = false;

  1001             boolean modified = false;

  1001             for (Iterator<K> i = iterator(); i.hasNext(); ) {

  1002             for (Iterator<K> i = iterator(); i.hasNext(); ) {

  1002                 if (c.contains(i.next())) {

  1003                 if (c.contains(i.next())) {

  1003                     i.remove();

  1004                     i.remove();

  1004                     modified = true;

  1005                     modified = true;

  1210          * Must revert from AbstractSet's impl to AbstractCollection's, as

  1211          * Must revert from AbstractSet's impl to AbstractCollection's, as

  1211          * the former contains an optimization that results in incorrect

  1212          * the former contains an optimization that results in incorrect

  1212          * behavior when c is a smaller "normal" (non-identity-based) Set.

  1213          * behavior when c is a smaller "normal" (non-identity-based) Set.

  1213          */

  1214          */

  1214         public boolean removeAll(Collection<?> c) {

  1215         public boolean removeAll(Collection<?> c) {

  1215             boolean modified = false;

  1217             boolean modified = false;

  1216             for (Iterator<Map.Entry<K,V>> i = iterator(); i.hasNext(); ) {

  1218             for (Iterator<Map.Entry<K,V>> i = iterator(); i.hasNext(); ) {

  1217                 if (c.contains(i.next())) {

  1219                 if (c.contains(i.next())) {

  1218                     i.remove();

  1220                     i.remove();

  1219                     modified = true;

  1221                     modified = true;