/** {@inheritDoc} */
 @Override
 public String toString() {
   return S.toString(GridCacheHibernateBlobStore.class, this);
 }
 /** {@inheritDoc} */
 @Override
 public String toString() {
   return S.toString(GridMessagingListenActor.class, this);
 }
 /** {@inheritDoc} */
 @Override
 public String toString() {
   return S.toString(GridPriorityQueueCollisionSpi.class, this);
 }
 /** {@inheritDoc} */
 @Override
 public String toString() {
   return S.toString(GridMemoryEventStorageSpi.class, this);
 }