continue
					}

					if err = Rename(pathJoin(currentDataPath, entry), pathJoin(legacyDataPath, entry)); err != nil {
						// Any failed rename calls un-roll previous transaction.
						s.deleteFile(dstVolumeDir, legacyDataPath, true, false)

						return res, osErrToFileErr(err)
					}
				}
			}
		}
	}

      }
    }

    @GuardedBy("this")
    void drainKeyReferenceQueue(ReferenceQueue<K> keyReferenceQueue) {
      Reference<? extends K> ref;
      int i = 0;
      while ((ref = keyReferenceQueue.poll()) != null) {
        @SuppressWarnings("unchecked")
        E entry = (E) ref;
        map.reclaimKey(entry);
        if (++i == DRAIN_MAX) {
          break;
        }
      }
    }

    public E peek() {
      synchronized (mutex) {
        return delegate().peek();
      }
    }

    @Override
    @CheckForNull
    public E poll() {
      synchronized (mutex) {
        return delegate().poll();
      }
    }

    @Override
    public E remove() {
      synchronized (mutex) {
        return delegate().remove();
      }
    }

					logger.Info("IAM expired STS purge took %.2fs", took)
				}
			}

			// The following actions are performed about once in 4 times that
			// IAM is refreshed:
			if r.Intn(4) == 0 {
				// Poll and remove accounts for those users who were removed
				// from LDAP/OpenID.
				if sys.LDAPConfig.Enabled() {
					sys.purgeExpiredCredentialsForLDAP(ctx)
					sys.updateGroupMembershipsForLDAP(ctx)
				}