*
 * ### Trust Manager Extraction
 *
 * Supported on Android 2.3+ and OpenJDK 7+. There are no public APIs to recover the trust
 * manager that was used to create an [SSLSocketFactory].
 *
 * Not supported by choice on JDK9+ due to access checks.
 *
 * ### Android Cleartext Permit Detection
 *
 * Supported on Android 6.0+ via `NetworkSecurityPolicy`.
 */
open class Platform {
  /** Prefix used on custom headers. */

        SmbTreeConnectionTrace trace = Mockito.spy(new SmbTreeConnectionTrace(ctx));
        doReturn(true).when(trace).isConnected();
        trace.acquire(); // usageCount becomes 1

        // Act & Assert: checkRelease should call isConnected() and not throw
        assertDoesNotThrow(trace::checkRelease);
        verify(trace, atLeastOnce()).isConnected();
    }

    @Test

        Session session;
        RequestTrace trace;
        ArtifactCoordinates artifactCoordinates;
        List<RemoteRepository> repositories;

        public VersionResolverRequestBuilder session(Session session) {
            this.session = session;
            return this;
        }

        public VersionResolverRequestBuilder trace(RequestTrace trace) {
            this.trace = trace;
            return this;
        }

        Session session;
        RequestTrace trace;
        ArtifactCoordinates artifactCoordinates;
        List<RemoteRepository> repositories;

        public VersionResolverRequestBuilder session(Session session) {
            this.session = session;
            return this;
        }

        public VersionResolverRequestBuilder trace(RequestTrace trace) {
            this.trace = trace;
            return this;
        }

            this.session = session;
            return this;
        }

        @Nonnull
        public ArtifactDeployerRequestBuilder trace(RequestTrace trace) {
            this.trace = trace;
            return this;
        }

        @Nonnull
        public ArtifactDeployerRequestBuilder repository(RemoteRepository repository) {
            this.repository = repository;

            this.session = session;
            return this;
        }

        @Nonnull
        public ArtifactResolverRequestBuilder trace(RequestTrace trace) {
            this.trace = trace;
            return this;
        }

        @Nonnull
        public ArtifactResolverRequestBuilder coordinates(Collection<? extends ArtifactCoordinates> coordinates) {
            this.coordinates = coordinates;

    private final S session;
    private final RequestTrace trace;

    protected BaseRequest(@Nonnull S session) {
        this(session, null);
    }

    protected BaseRequest(@Nonnull S session, RequestTrace trace) {
        this.session = requireNonNull(session, "session cannot be null");
        this.trace = trace;
    }

    @Nonnull
    @Override
    public S getSession() {

    registry.register(o1);

    Iterator<Subscriber> three = registry.getSubscribers("");
    assertEquals(s1, one.next().target);
    assertFalse(one.hasNext());

    assertEquals(s1, three.next().target);
    assertEquals(s2, three.next().target);
    assertEquals(o1, three.next().target);
    assertFalse(three.hasNext());

    three = registry.getSubscribers("");

    registry.unregister(s2);

        public ArtifactFactoryRequestBuilder session(Session session) {
            this.session = session;
            return this;
        }

        public ArtifactFactoryRequestBuilder trace(RequestTrace trace) {
            this.trace = trace;
            return this;
        }

        public ArtifactFactoryRequestBuilder groupId(String groupId) {
            this.groupId = groupId;
            return this;
        }

            this.session = session;
            return this;
        }

        @Nonnull
        public ArtifactInstallerRequestBuilder trace(RequestTrace trace) {
            this.trace = trace;
            return this;
        }

        @Nonnull
        public ArtifactInstallerRequestBuilder artifacts(@Nullable Collection<ProducedArtifact> artifacts) {
            this.artifacts = artifacts != null ? artifacts : Collections.emptyList();