input.addListener(output, rejectionPropagatingExecutor(executor, output));
    return output;
  }

  static <I extends @Nullable Object, O extends @Nullable Object> ListenableFuture<O> create(
      ListenableFuture<I> input, Function<? super I, ? extends O> function, Executor executor) {
    TransformFuture<I, O> output = new TransformFuture<>(input, function);

    CharBuffer empty = CharBuffer.wrap("");
    assertEquals(0, CharStreams.exhaust(empty));
    assertEquals(0, empty.remaining());
  }

  public void testNullWriter() throws Exception {
    // create a null writer
    Writer nullWriter = CharStreams.nullWriter();
    // write to the writer
    nullWriter.write('n');
    String test = "Test string for NullWriter";
    nullWriter.write(test);

    input.addListener(output, rejectionPropagatingExecutor(executor, output));
    return output;
  }

  static <I extends @Nullable Object, O extends @Nullable Object> ListenableFuture<O> create(
      ListenableFuture<I> input, Function<? super I, ? extends O> function, Executor executor) {
    TransformFuture<I, O> output = new TransformFuture<>(input, function);

    CharBuffer empty = CharBuffer.wrap("");
    assertEquals(0, CharStreams.exhaust(empty));
    assertEquals(0, empty.remaining());
  }

  public void testNullWriter() throws Exception {
    // create a null writer
    Writer nullWriter = CharStreams.nullWriter();
    // write to the writer
    nullWriter.write('n');
    String test = "Test string for NullWriter";
    nullWriter.write(test);

        echoResponse = new Smb2EchoResponse(mockConfig);
    }

    @Nested
    @DisplayName("Constructor Tests")
    class ConstructorTests {

        @Test
        @DisplayName("Should create response with configuration")
        void testConstructor() {
            Smb2EchoResponse response = new Smb2EchoResponse(mockConfig);
            assertNotNull(response);

                                 export_dir, tag_set, &bundle);
  if (!status->status.ok()) return nullptr;

  // Create a TF_Graph from the MetaGraphDef. This is safe as long as Session
  // extends using GraphDefs. The Graph instance is different, but equivalent
  // to the one used to create the session.
  //
  // TODO(jhseu): When Session is modified to take Graphs instead of

	}
	return paths
}

// string concat alternative to s1 + s2 with low overhead.
func concat(ss ...string) string {
	length := len(ss)
	if length == 0 {
		return ""
	}
	// create & allocate the memory in advance.
	n := 0
	for i := range length {
		n += len(ss[i])
	}
	b := make([]byte, 0, n)
	for i := range length {
		b = append(b, ss[i]...)
	}

            CopyUtil.copy(in, out);
            asyncImport(fileName, tempFile);
        } catch (final IOException e) {
            logger.warn("Failed to create a temp file.", e);
            if (tempFile.exists() && !tempFile.delete()) {
                logger.warn("Failed to delete {}.", tempFile.getAbsolutePath());
            }

                copiedRestrictions.addAll(restrictions);
            }
        }

        return new VersionRange(recommendedVersion, copiedRestrictions);
    }

    /**
     * <p>
     * Create a version range from a string representation
     * </p>
     * Some spec examples are:
     * <ul>
     * <li><code>1.0</code> Version 1.0 as a recommended version</li>

      if (result) {
        executionList.execute();
      }
      return result;
    }

    /**
     * Following the contract of {@link AbstractQueuedSynchronizer} we create a private subclass to
     * hold the synchronizer. This synchronizer is used to implement the blocking and waiting calls
     * as well as to handle state changes in a thread-safe manner. The current state of the future