}

    @Override
    public boolean containsAll(Collection<?> collection) {
      return standardContainsAll(collection);
    }

    @Override
    public boolean isEmpty() {
      return standardIsEmpty();
    }

    @Override
    public Iterator<E> iterator() {
      return standardIterator();
    }

    @Override

    registry.unregister(s1);
    assertEquals(1, registry.getSubscribersForTesting(String.class).size());

    registry.unregister(s2);
    assertTrue(registry.getSubscribersForTesting(String.class).isEmpty());
  }

  public void testUnregister_notRegistered() {
    assertThrows(IllegalArgumentException.class, () -> registry.unregister(new StringSubscriber()));

    StringSubscriber s1 = new StringSubscriber();

     * @throws CrawlingAccessException if access is denied
     */
    protected Blob getBlob(final String bucketName, final String path) {
        if (StringUtil.isEmpty(path)) {
            return null;
        }

        try {
            return storage.get(BlobId.of(bucketName, path));
        } catch (final StorageException e) {
            final int code = e.getCode();

     * cache-control headers.
     */
    open fun cacheControl(cacheControl: CacheControl): Builder {
      val value = cacheControl.toString()
      return when {
        value.isEmpty() -> removeHeader("Cache-Control")
        else -> header("Cache-Control", value)
      }
    }

    open fun get(): Builder = method("GET", null)

    open fun head(): Builder = method("HEAD", null)

    }

    protected void mergeModelBase_Modules(
            ModelBase target, ModelBase source, boolean sourceDominant, Map<Object, Object> context) {
        List<String> src = source.getModules();
        if (!src.isEmpty()) {
            List<String> tgt = target.getModules();
            List<String> merged = new ArrayList<>(tgt.size() + src.size());
            merged.addAll(tgt);
            merged.addAll(src);

        List<KerberosAuthData> authorizations = relevantAuthData.getAuthorizations();
        assertNotNull(authorizations, "The authorizations list should not be null.");
        assertTrue(authorizations.isEmpty(), "The authorizations list should be empty.");
    }

    /**
     * Test the getAuthorizations method.
     *
     * @throws IOException if ASN.1 encoding fails.

        assertTrue(endLatch.await(30, TimeUnit.SECONDS), "All threads should complete");
        executor.shutdown();

        // Then - All operations should succeed
        assertTrue(exceptions.isEmpty(), "No exceptions should occur");
        assertEquals(threadCount * opsPerThread, successCount.get(), "All operations should succeed");
    }

    /**
     * Test that buffer cache handles allocation when cache is full.

      assertWithMessage("%s to %s", from, from).that(from.to(from, "foo")).isSameInstanceAs("foo");
      for (CaseFormat to : CaseFormat.values()) {
        assertWithMessage("%s to %s", from, to).that(from.to(to, "")).isEmpty();
        assertWithMessage("%s to %s", from, to).that(from.to(to, " ")).isEqualTo(" ");
      }
    }
  }

  @J2ktIncompatible
  @GwtIncompatible // NullPointerTester
  public void testNullArguments() {

        insertContentElement(parent, GROUP_ID, groupId);
        insertContentElement(parent, ARTIFACT_ID, artifactId);
        if (version != null && !version.isEmpty()) {
            insertContentElement(parent, VERSION, version);
        }
    }

    /**
     * Convenience method to create a dependency element with GAV.
     *

        return pwAuth instanceof jcifs.smb.NtlmPasswordAuthentication
                && !((jcifs.smb.NtlmPasswordAuthentication) pwAuth).areHashesExternal() && pwAuth.getPassword().isEmpty();
    }

    @Override
    protected int writeBytesWireFormat(final byte[] dst, int dstIndex) {
        final int start = dstIndex;