* Update to kube-addon-manager:v6.4-beta.2: kubectl v1.6.4 and refreshed base images ([#47389](https://github.com/kubernetes/kubernetes/pull/47389), [@ixdy](https://github.com/ixdy))

    return delegate().getAll(keys);
  }

  @Override
  public V apply(K key) {
    return delegate().apply(key);
  }

  @Override
  public void refresh(K key) {
    delegate().refresh(key);
  }

  /**
   * A simplified version of {@link ForwardingLoadingCache} where subclasses can pass in an already
   * constructed {@link LoadingCache} as the delegate.
   *
   * @since 10.0

	// Canceling the context will abort the remote call.
	// In that case, the resource may or may not be unlocked.
	Unlock(ctx context.Context, args LockArgs) (bool, error)

	// Refresh the given lock to prevent it from becoming stale
	Refresh(ctx context.Context, args LockArgs) (bool, error)

	// Unlock (read/write) forcefully for given LockArgs. It should return
	// * a boolean to indicate success/failure of the operation

    String[] getRoleNames();

    String[] getGroupNames();

    String[] getPermissions();

    default boolean isEditable() {
        return false;
    }

    default boolean refresh() {
        return false;
    }

    public ActionResponse godHandPrologue(final ActionRuntime runtime) {
        fessLoginAssist.getSavedUserBean().ifPresent(u -> {
            final boolean result = u.getFessUser().refresh();
            if (logger.isDebugEnabled()) {
                logger.debug("refresh user info: {}", result);
            }
        });
        return viewHelper.getActionHook().godHandPrologue(runtime, super::godHandPrologue);
    }

    @Override

@app.on_event("startup")
def on_startup():
    create_db_and_tables()


@app.post("/heroes/")
def create_hero(hero: Hero, session: SessionDep) -> Hero:
    session.add(hero)
    session.commit()
    session.refresh(hero)
    return hero


@app.get("/heroes/")
def read_heroes(
    session: SessionDep,
    offset: int = 0,
    limit: Annotated[int, Query(le=100)] = 100,
) -> list[Hero]:

   * <p>Returns without doing anything if another thread is currently loading the value for {@code
   * key}. If the cache loader associated with this cache performs refresh asynchronously then this
   * method may return before refresh completes.
   *
   * @since 11.0
   */
  void refresh(K key);

  /**
   * {@inheritDoc}
   *
   * <p><b>Note that although the view <i>is</i> modifiable, no method on the returned map will ever

        to.cachedSubject = from.cachedSubject;
    }


    /**
     * {@inheritDoc}
     *
     * @see jcifs.smb.Kerb5Authenticator#refresh()
     */
    @Override
    public void refresh () throws CIFSException {
        log.debug("Refreshing JAAS credentials");
        this.cachedSubject = null;
    }


    /**
     * {@inheritDoc}
     *

    public void before() throws Exception {
        try {
            runner.admin().indices().prepareDelete("_all").execute().actionGet();
        } catch (IndexNotFoundException ignore) {

        }
        runner.refresh();
        suggester = Suggester.builder().build(runner.client(), "SuggesterTest");
        suggester.createIndexIfNothing();
    }

    @Test
    public void test_Read() throws Exception {

```kotlin
cache.evictAll()
```

Removing individual items can be done using the urls iterator.
This would be typical after a user initiates a force refresh by a pull to refresh type action.

```java
    val urlIterator = cache.urls()
    while (urlIterator.hasNext()) {
      if (urlIterator.next().startsWith("https://www.google.com/")) {
        urlIterator.remove()
      }