/** {@inheritDoc} */
 @Override
 public String toString() {
   return S.toString(GridCacheAtomicSequenceImpl.class, this);
 }
 /** {@inheritDoc} */
 @Override
 public String toString() {
   return S.toString(GridReplicatedCache.class, this, "super", super.toString());
 }
 /** {@inheritDoc} */
 @Override
 public String toString() {
   return S.toString(GridCacheCountDownLatchImpl.class, this);
 }