this.source = location.getSource() != null ? new InputSource(location.getSource()) : null;
        this.locations = location.getLocations().isEmpty()
                ? null
                : location.getLocations().entrySet().stream()
                        .collect(Collectors.toMap(
                                e -> e.getKey(),
                                e -> e.getValue() == location ? this : new InputLocation(e.getValue())));

    return policy == Policies.DISABLED
        ? new ReentrantReadWriteLock(fair)
        : new CycleDetectingReentrantReadWriteLock(new LockGraphNode(lockName), fair);
  }

  // A static mapping from an Enum type to its set of LockGraphNodes.
  private static final ConcurrentMap<
          Class<? extends Enum<?>>, Map<? extends Enum<?>, LockGraphNode>>
      lockGraphNodesPerType = new MapMaker().weakKeys().makeMap();

                newEntry.setLink("new-link-" + i);
                newEntry.replaceCache();
            }

            // Verify replacements
            assertEquals(10, cache.size());
            for (int i = 0; i < 5; i++) {
                DfsReferralDataInternal entry = cache.get("key-" + i);
                assertEquals("new-link-" + i, entry.getLink());
            }
        }

            return updateEntity(source, result);
        } catch (InstantiationException | IllegalAccessException e) {
            final String msg = "Cannot create a new instance: " + entityType.getName();
            throw new IllegalBehaviorStateException(msg, e);
        }
    }

    protected <RESULT extends User> RESULT updateEntity(Map<String, Object> source, RESULT result) {
        return result;
    }

		"arn:aws:s3:::my-bucketname/*"
	  ],
	  "Sid": ""
	}
  ]
}
EOF
```

Create new canned policy by name `getonly` using `getonly.json` policy file.

```
mc admin policy create myminio getonly getonly.json
```

Create a new user `newuser` on MinIO use `mc admin user`.

```
mc admin user add myminio newuser newuser123
```

Once the user is successfully created you can now apply the `getonly` policy for this user.

  }

  public void testTreeMapDerived() {
    TreeMap<Derived, Integer> map = Maps.newTreeMap();
    assertEquals(emptyMap(), map);
    map.put(new Derived("foo"), 1);
    map.put(new Derived("bar"), 2);
    assertThat(map.keySet()).containsExactly(new Derived("bar"), new Derived("foo")).inOrder();
    assertThat(map.values()).containsExactly(2, 1).inOrder();
    assertThat(map.comparator()).isNull();
  }

        case 'D':
            return new LogMessage(LogLevel.DEBUG, message);
        case 'I':
            return new LogMessage(LogLevel.INFO, message);
        case 'W':
            return new LogMessage(LogLevel.WARN, message);
        case 'E':
            return new LogMessage(LogLevel.ERROR, message);
        case 'F':
            return new LogMessage(LogLevel.FATAL, message);
        default:

        final String[] froms = time.split(":");
        if (froms.length != 2) {
            throw new FessSystemException("Invalid time format: " + time + ". Expected format: HH:MM");
        }
        final int[] values = new int[2];
        values[0] = Integer.parseInt(froms[0]);
        if (values[0] < 0 || values[0] > 23) {

     */
    public E getFirst() {
        if (isEmpty()) {
            throw new NoSuchElementException();
        }
        return getFirstEntry().element;
    }

    /**
     * Returns the last element.
     *
     * @return the last element
     */
    public E getLast() {
        if (isEmpty()) {
            throw new NoSuchElementException();
        }
        return getLastEntry().element;
    }

    private static final ConcurrentMap<Class<?>, Map<String, MethodInfo>> METHOD_CACHE = new ConcurrentHashMap<>();

    // Cache for field lookups: Class -> FieldName -> Field
    private static final ConcurrentMap<Class<?>, Map<String, Field>> FIELD_CACHE = new ConcurrentHashMap<>();

    private final ConverterLookup lookup;
    private final ClassLoader loader;