return
			}
			grid.PutByteBuffer(entry)
			if len(traceCh) == 0 {
				// Flush if nothing is queued
				xhttp.Flush(w)
			}
		case <-keepAliveTicker.C:
			if len(traceCh) > 0 {
				continue
			}
			if _, err := w.Write([]byte(" ")); err != nil {
				return
			}
			xhttp.Flush(w)
		case <-ctx.Done():
			return
		}
	}
}

                result.getManagedVersions(),
                result.getResolutionRepositories());

        cache.put(cacheKey, cacheRecord);
    }

    @Override
    public void flush() {
        cache.clear();
    }

				wrote.Write(buf[:1])
				debugln("WRITE 5\t", 1, wroteBytes)
			}
			if doSleep && writeRng.Intn(10) == 0 {
				time.Sleep(time.Duration(writeRng.Intn(maxSleep)))
			}
		}
		if err := rb.Flush(); err != nil {
			t.Fatalf("flush failed: %v", err)
		}
		rb.CloseWriter()
	}
	wg.Wait()
	if !errors.Is(readErr, io.EOF) {
		t.Fatalf("expect io.EOF but got %v", readErr)
	}
	if readBytes != wroteBytes {

      requestBody.flush()
      val responseBody = response.body.source()
      assertThat(responseBody.readUtf8Line())
        .isEqualTo("response B")
      requestBody.writeUtf8("request C\n")
      requestBody.flush()
      assertThat(responseBody.readUtf8Line())
        .isEqualTo("response D")
      requestBody.writeUtf8("request E\n")
      requestBody.flush()

	if err != nil {
		t.Fatal(err)
	}
	if buf.Len() > 0 {
		t.Fatalf("Unexpected %d bytes already in buffer", buf.Len())
	}
	if err := w.Flush(); err != nil {
		t.Fatal(err)
	}
	if buf.Len() == 0 {
		t.Fatal("No bytes written after Flush")
	}
}

func TestWriterDir(t *testing.T) {
	w := NewWriter(io.Discard)
	dw, err := w.Create("dir/")
	if err != nil {
		t.Fatal(err)
	}

        Arrays.fill(buffer, (byte) 0xCC); // Fill with pattern to detect unwritten areas

        int written = request.writeBytesWireFormat(buffer, 0);

        // Verify structure according to SMB2 FLUSH specification
        // Structure Size (2 bytes) - should be 24
        assertEquals(24, SMBUtil.readInt2(buffer, 0));

        // Reserved1 (2 bytes) - should be 0 (bytes were initialized to 0xCC, so they weren't written)

        public void close() throws IOException {
            this.stream.close();
            this.collector.close();
        }

        @Override
        public void flush() throws IOException {
            this.stream.flush();
            this.collector.flush();
        }

        @Override
        public void write(final byte[] b) throws IOException {
            this.stream.write(b);
            this.collector.write(b);

            writtenChars++;
            bitBufferLength -= alphabet.bitsPerChar;
          }
        }

        @Override
        public void flush() throws IOException {
          out.flush();
        }

        @Override
        public void close() throws IOException {
          if (bitBufferLength > 0) {

   */
  private static final int ZERO_COPY_CHUNK_SIZE = 512 * 1024;

  private ByteStreams() {}

  /**
   * Copies all bytes from the input stream to the output stream. Does not close or flush either
   * stream.
   *
   * <p><b>Java 9 users and later:</b> this method should be treated as deprecated; use the
   * equivalent {@link InputStream#transferTo} method instead.
   *

                    options,
                    HelpFormatter.DEFAULT_LEFT_PAD,
                    HelpFormatter.DEFAULT_DESC_PAD,
                    System.lineSeparator(),
                    false);
            pw2.flush();
            for (String s : sw.toString().split(System.lineSeparator())) {
                pw.accept(s);
            }
        }

        protected String commandLineSyntax(String command) {