testEncryptionKey, testDecryptionKey);

        // When/Then - Multiple closes should be safe
        assertDoesNotThrow(() -> {
            context.close();
            context.close();
            context.close();
        });

        assertTrue(context.isClosed());
    }

    @Test
    @DisplayName("Should handle concurrent operations with SecureKeyManager")

    the certificate that follows and the last certificate is signed by a trusted root.

 *  Fix: Don't lose HTTP/2 flow control bytes when incoming data races with a stream close. If this
    happened enough then eventually the connection would stall.

 *  Fix: Acknowledge and apply inbound HTTP/2 settings atomically. Previously we had a race where we

          range.lowerBoundType() == BoundType.CLOSED,
          range.upperEndpoint(),
          range.upperBoundType() == BoundType.CLOSED);
    } else if (range.hasLowerBound()) {
      return set.tailSet(range.lowerEndpoint(), range.lowerBoundType() == BoundType.CLOSED);
    } else if (range.hasUpperBound()) {
      return set.headSet(range.upperEndpoint(), range.upperBoundType() == BoundType.CLOSED);
    }
    return checkNotNull(set);

 *           ...log a message about how nobody called close()...
 *           try {
 *             serverSocket.close();
 *           } catch (IOException e) {
 *             ...
 *           }
 *         }
 *       }
 *     };
 *     references.add(reference);
 *     return myServer;
 *   }
 *
 *   @Override
 *   public void close() throws IOException {
 *     serverSocket.close();
 *   }
 * }
 * }
 *

  @Deprecated
  @Override
  @DoNotCall("Always throws UnsupportedOperationException")
  // DoNotCall wants this to be final, but we want to override it to return more specific types.
  // Inheritance is closed, and all subtypes are @DoNotCall, so this is safe to suppress.
  @SuppressWarnings("DoNotCall")
  public ImmutableCollection<V> removeAll(@Nullable Object key) {
    throw new UnsupportedOperationException();
  }

		}
	}
	if !truncated {
		return entries, io.EOF
	}
	return entries, nil
}

// listMerged will list across all sets and return a merged results stream.
// The result channel is closed when no more results are expected.
func (z *erasureServerPools) listMerged(ctx context.Context, o listPathOptions, results chan<- metaCacheEntry) error {
	var mu sync.Mutex
	var wg sync.WaitGroup
	var errs []error

        @Test
        @DisplayName("Should wipe key on close")
        void testCloseWipesKey() throws Exception {
            byte[] sessionKey = new byte[16];
            Arrays.fill(sessionKey, (byte) 0xBB);

            Smb2SigningDigest digest = new Smb2SigningDigest(sessionKey, Smb2Constants.SMB2_DIALECT_0202, null);

            // Close the digest
            digest.close();

            // Verify operations fail after close

   * - The first request "wins the race".
   * - The second request discovers it "lost the race" and closes the connection it just opened.
   * - The second request uses the coalesced connection from request1.
   * - The coalesced connection is violently closed after servicing the first request.
   * - The second request discovers the coalesced connection is unhealthy just after acquiring it.
   */
  @Test

		}
	}
	return rsc.reader.Read(p)
}

// Close call to implement io.Closer. Calling Read/Seek after Close reopens the
// object for reading and a subsequent Close call is required to ensure
// resources are freed.
func (rsc *ObjectReadSeekCloser) Close() error {
	rsc.closerOnce.Do(func() {
		if rsc.reader != nil {
			rsc.closerErr = rsc.reader.Close()
			rsc.reader = nil
		}
	})
	return rsc.closerErr

	}
	defer done(0, &err)

	return p.storage.WalkDir(ctx, opts, wr)
}

// WalkDir will traverse a directory and return all entries found.
// On success a meta cache stream will be returned, that should be closed when done.
func (client *storageRESTClient) WalkDir(ctx context.Context, opts WalkDirOptions, wr io.Writer) error {
	// Ensure remote has the same disk ID.
	opts.DiskID = *client.diskID.Load()