});

    // Don't copy this into your own test!
    // Use e.g. awaitClear or await(CountDownLatch) instead.
    GcFinalization.awaitFullGc();

    // If this test turns out to be flaky, add a second call to awaitFullGc()
    // GcFinalization.awaitFullGc();

    assertEquals(0, finalizerRan.getCount());
    assertNull(ref.get());
  }

use class properties because they don't get listed in the\n  // class prototype and break stuff like Sinon stubs\n  update() {\n    return update.call(this);\n  }\n  destroy() {\n    return destroy.call(this);\n  }\n  enableEventListeners() {\n    return enableEventListeners.call(this);\n  }\n  disableEventListeners() {\n    return disableEventListeners.call(this);\n  }\n\n  /**\n   * Schedules an update. It will run on the next UI update available.\n   * @method scheduleUpdate\n   * @memberof Popper\n...

          }
        };
    assertFailure(tester);
  }

  /**
   * This Iterator wraps another iterator and gives it a bug found in JDK6.
   *
   * <p>This bug is this: if you create an iterator from a TreeSet and call next() on that iterator
   * when hasNext() is false, so that next() throws a NoSuchElementException, then subsequent calls
   * to remove() will incorrectly throw an IllegalStateException, instead of removing the last

    }
    return new String(dest, 0, destIndex);
  }

  /**
   * Helper method to grow the character buffer as needed, this only happens once in a while so it's
   * ok if it's in a method call. If the index passed in is 0 then no copying will be done.
   */
  private static char[] growBuffer(char[] dest, int index, int size) {
    if (size < 0) { // overflow - should be OutOfMemoryError but GWT/j2cl don't support it

      return obj instanceof IsOdd;
    }

    @Override
    public String toString() {
      return "IsOdd";
    }
  }

  /**
   * Generates a new Predicate per call.
   *
   * <p>Creating a new Predicate each time helps catch cases where code is using {@code x == y}
   * instead of {@code x.equals(y)}.
   */
  private static IsOdd isOdd() {
    return new IsOdd();
  }

import org.eclipse.aether.version.VersionScheme;

/**
 * A simple memorizing {@link Supplier} of {@link RepositorySystem} instance, that on first call
 * supplies lazily constructed instance, and on each subsequent call same instance. Hence, this instance should be
 * thrown away immediately once repository system was created and there is no need for more instances. If new

```Python hl_lines="1  10"
{!> ../../docs_src/settings/app03/main.py!}
```

////

Then for any subsequent call of `get_settings()` in the dependencies for the next requests, instead of executing the internal code of `get_settings()` and creating a new `Settings` object, it will return the same object that was returned on the first call, again and again.

#### `lru_cache` Technical Details

   * the same order. If you want a different order, consider using {@link ImmutableSortedMap} to
   * sort by keys, or call {@link #orderEntriesByValue(Comparator)}, which changes this builder to
   * sort entries by value.
   *
   * <p>Builder instances can be reused - it is safe to call {@link #buildOrThrow} multiple times to
   * build multiple maps in series. Each map is a superset of the maps created before it.
   *

   * started execution. It is unclear from the {@code ExecutorService} specification if these should
   * be included, and it's much easier to implement the interpretation that they not be. Finally, a
   * call to {@code shutdown} or {@code shutdownNow} may result in concurrent calls to {@code
   * invokeAll/invokeAny} throwing RejectedExecutionException, although a subset of the tasks may
   * already have been executed.
   *

        return systemHelper.createValidator(requestManager, this::createMessages, myValidationGroups());
    }

    @Override
    public FessMessages createMessages() { // application may call
        return new FessMessages(); // overriding to change return type to concrete-class
    }

    // ===================================================================================