}

// Lock holds a write lock on dm.
//
// If the lock is already in use, the calling go routine
// blocks until the mutex is available.
func (dm *DRWMutex) Lock(id, source string) {
	isReadLock := false
	dm.lockBlocking(context.Background(), nil, id, source, isReadLock, Options{
		Timeout: drwMutexInfinite,
	})
}

// Options lock options.
type Options struct {
	Timeout       time.Duration

    FileBackedOutputStream out = new FileBackedOutputStream(Integer.MAX_VALUE);
    ByteSource source = out.asByteSource();

    out.write(data);
    assertThat(source.read()).isEqualTo(data);

    out.reset();
    assertThat(source.read()).isEmpty();

    out.write(data);
    assertThat(source.read()).isEqualTo(data);

    out.close();
  }

  private static boolean isAndroid() {

	{
		Header: http.Header{
			"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Algorithm": []string{""},
			"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key":       []string{""},
			"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key-Md5":   []string{""},
		},
		Expected: true,
	}, // 4
	{
		Header: http.Header{
			"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Algorithm": []string{"AES256"},

	if job.Replicate != nil {
		if job.Replicate.Source.Snowball.Disable == nil {
			job.Replicate.Source.Snowball.Disable = ptr(false)
		}
		if job.Replicate.Source.Snowball.Batch == nil {
			job.Replicate.Source.Snowball.Batch = ptr(100)
		}
		if job.Replicate.Source.Snowball.InMemory == nil {
			job.Replicate.Source.Snowball.InMemory = ptr(true)
		}
		if job.Replicate.Source.Snowball.Compress == nil {

	lm.lockLoop(context.Background(), lm.id, lm.source, 1<<63-1, isWriteLock)
}

// GetRLock tries to get a read lock on lm before the timeout occurs.
func (lm *LRWMutex) GetRLock(ctx context.Context, id string, source string, timeout time.Duration) (locked bool) {
	const isWriteLock = false
	return lm.lockLoop(ctx, id, source, timeout, isWriteLock)
}

func (lm *LRWMutex) lock(id, source string, isWriteLock bool) (locked bool) {
	lm.mu.Lock()

    assertEquals(STRING.length(), source.copyTo(sink));
    assertTrue(source.wasStreamOpened() && source.wasStreamClosed());
    assertTrue(sink.wasStreamOpened() && sink.wasStreamClosed());

    assertEquals(STRING, sink.getString());
  }

  public void testRead_toString() throws IOException {
    assertEquals(STRING, source.read());
    assertTrue(source.wasStreamOpened() && source.wasStreamClosed());
  }

            ArtifactMetadataSource source,
            ArtifactFilter filter)
            throws ArtifactResolutionException, ArtifactNotFoundException {
        return resolveTransitively(
                artifacts,
                originatingArtifact,
                Collections.emptyMap(),
                localRepository,
                remoteRepositories,
                source,
                filter);
    }

    }

    public void setSource(String source) {
        this.source = source;
        this.sourceModel = null;
    }

    public void setSource(Model source) {
        this.sourceModel = source;
        this.source = null;

        if (rootModel == null) {
            rootModel = source;
        }
    }

    private String getSource() {
        if (source == null && sourceModel != null) {

        @Singleton
        static class TestModelParser implements ModelParser {
            @Override
            public Optional<Source> locate(Path dir) {
                return Optional.empty();
            }

            @Override
            public Model parse(Source source, Map<String, ?> options) throws ModelParserException {
                return null;
            }
        }
    }

    @Nested

        public void mergeModelBase(ModelBase target, ModelBase source) {
            mergeModelBase(target, source, true, Collections.emptyMap());
        }

        public void mergeBuildBase(BuildBase target, BuildBase source) {
            mergeBuildBase(target, source, true, Collections.emptyMap());
        }

        @Override
        protected void mergePluginContainer_Plugins(