deleteAll(ctx context.Context, bucket, prefix string)
}

// newBucketMetacache creates a new bucketMetacache.
// Optionally remove all existing caches.
func newBucketMetacache(bucket string, cleanup bool) *bucketMetacache {
	if cleanup {
		// Recursively delete all caches.
		objAPI := newObjectLayerFn()
		if objAPI != nil {
			ez, ok := objAPI.(deleteAllStorager)
			if ok {
				ctx := context.Background()

import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * A simple EventSubscriber mock that records Strings.
 *
 * <p>For testing fun, also includes a landmine method that EventBus tests are required not
 * to call ({@link #methodWithoutAnnotation(String)}).
 *
 * @author Cliff Biffle
 */
public class StringCatcher {
  private List<String> events = Lists.newArrayList();

  @Subscribe

        private final RequestOptionCall<BulkRequestBuilder> call;

        private final RequestOptionCall<B> entityCall;

        public BulkList(final List<E> parent, final RequestOptionCall<BulkRequestBuilder> call, final RequestOptionCall<B> entityCall) {
            this.parent = parent;
            this.entityCall = entityCall;
            this.call = call;
        }

        public int size() {

    final String expected = "TestClass{field1=1, value1, field2=value2}";

    assertEquals(expected, helper.toString());
    // Call toString again
    assertEquals(expected, helper.toString());

    // Make sure the cached value is reset when we modify the helper at all
    final String expected2 = "TestClass{field1=1, value1, field2=value2, 2}";
    helper.addValue(2);
    assertEquals(expected2, helper.toString());

        v3(),
        getMap()
            .merge(
                k3(),
                v3(),
                (oldV, newV) -> {
                  throw new AssertionFailedError(
                      "Should not call merge function if key was absent");
                }));
    expectAdded(e3());
  }

  @MapFeature.Require({SUPPORTS_PUT, ALLOWS_NULL_VALUES})
  @CollectionSize.Require(absent = ZERO)
  public void testMappedToNull() {

        OkHttpClient.Builder()
          .eventListenerFactory(
            clientTestRule.wrap(
              object : EventListener() {
                override fun connectionAcquired(
                  call: Call,
                  connection: Connection,
                ) {
                  socketClass = connection.socket().javaClass.name
                }
              },
            ),
          )

  // defaults

  /**
   * Copies all characters between the {@link Reader} and {@link StringBuilder} objects. Does not
   * close or flush the reader.
   *
   * <p>This is identical to {@link #copy(Readable, Appendable)} but optimized for these specific
   * types. CharBuffer has poor performance when being written into or read out of so round tripping

 *       prevent its use, because this would also rule out all ungenerified (pre-JDK1.5) data types.
 *       <b>This may change in the future.</b>
 * </ul>
 *
 * <h3>Other notes</h3>
 *
 * <ul>
 *   <li>All ranges are shallow-immutable.
 *   <li>Instances of this type are obtained using the static factory methods in this class.
 *   <li>Ranges are <i>convex</i>: whenever two values are contained, all values in between them

      Short[] all = concat(elements, suffix);
      return asList(all).subList(0, elements.length);
    }
  }

  public static final class ShortsAsListTailSubListGenerator extends TestShortListGenerator {
    @Override
    protected List<Short> create(Short[] elements) {
      Short[] prefix = {(short) 86, (short) 99};
      Short[] all = concat(prefix, elements);

      Character[] all = concat(elements, suffix);
      return asList(all).subList(0, elements.length);
    }
  }

  public static final class CharsAsListTailSubListGenerator extends TestCharListGenerator {
    @Override
    protected List<Character> create(Character[] elements) {
      Character[] prefix = {(char) 86, (char) 99};
      Character[] all = concat(prefix, elements);