import com.google.errorprone.annotations.DoNotMock;
import java.io.IOException;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * A callback interface to process bytes from a stream.
 *
 * <p>{@link #processBytes} will be called for each chunk of data that is read, and should return
 * {@code false} when you want to stop processing.
 *
 * @author Chris Nokleberg
 * @since 1.0
 */
@DoNotMock("Implement it normally")

        source.read(
            new ByteProcessor<byte[]>() {
              final ByteArrayOutputStream out = new ByteArrayOutputStream();

              @Override
              public boolean processBytes(byte[] buf, int off, int len) throws IOException {
                out.write(buf, off, len);
                return true;
              }

              @Override
              public byte[] getResult() {

        source.read(
            new ByteProcessor<byte[]>() {
              final ByteArrayOutputStream out = new ByteArrayOutputStream();

              @Override
              public boolean processBytes(byte[] buf, int off, int len) throws IOException {
                out.write(buf, off, len);
                return true;
              }

              @Override
              public byte[] getResult() {