return output;
  }

  /*
   * In certain circumstances, this field might theoretically not be visible to an afterDone() call
   * triggered by cancel(). For details, see the comments on the fields of TimeoutFuture.
   */
  @LazyInit @Nullable ListenableFuture<? extends I> inputFuture;
  @LazyInit @Nullable F function;

  AbstractTransformFuture(ListenableFuture<? extends I> inputFuture, F function) {

Try to avoid using bitter sarcasm or potentially passive-aggressive comments. If something is wrong, it's better to be direct (try to be gentle) than sarcastic.

Try to be as specific and objective as possible, avoid generalizations.

            long id = 0;
            String line = null;
            while ((line = reader.readLine()) != null) {
                // Remove comments
                final String replacedLine = line.replaceAll("#.*$", StringUtil.EMPTY).trim();

                // Skip empty lines or comment lines
                if (replacedLine.length() == 0) {

        PagingList<CharMappingItem> result = charMappingFile.selectList(0, 10);
        assertEquals(1, result.size());
        assertEquals("f", result.get(0).getOutput());
    }

    // Test reload with comments and empty lines
    @Test
    public void test_reload_withCommentsAndEmptyLines() throws Exception {
        writeTestFile("# This is a comment\n\na,b => c\n\n# Another comment\nd,e => f\n");

        SMBUtil.writeInt4(208, buffer, bufferIndex + 4);

        response = spy(response);
        when(response.getHeaderStart()).thenReturn(0);

        // Note: Due to bug in line 96 (commented out bufferIndex = bufferOffset),
        // the decode starts at bufferIndex=8 instead of dataOffset=80
        // So we need to write data at bufferIndex=8

        // Write first FileBothDirectoryInfo at bufferIndex=8

                    if (updater != null) {
                        updater.write(line);
                    }
                    continue; // ignore empty lines and comments
                }

                String[] inputs;
                String[] outputs;

                final List<String> sides = split(line, "=>");
                if (sides.size() > 1) { // explicit mapping

            // Expected for missing file
            assertTrue(true);
        }
    }

    @Test
    public void test_reload_withEmptyLines() throws Exception {
        // Create content with empty lines and comments
        String content = "# Comment line\n" + "\n" + // empty line
                "word1\n" + "  \n" + // whitespace line (may be treated as content)
                "# Another comment\n" + "word2\n";

  }

  @Override
  public void remove(Range<K> rangeToRemove) {
    if (rangeToRemove.isEmpty()) {
      return;
    }

    /*
     * The comments for this method will use [ ] to indicate the bounds of rangeToRemove and ( ) to
     * indicate the bounds of ranges in the range map.
     */
    Entry<Cut<K>, RangeMapEntry<K, V>> mapEntryBelowToTruncate =

	}

	// Check if config param requested is valid.
	defKVS, ok := DefaultKVS[subSys]
	if !ok {
		return value, cs, isRedacted
	}

	defValue, isFound := defKVS.Lookup(cfgParam)
	// Comments usually are absent from `defKVS`, so we handle it specially.
	if !isFound && cfgParam == Comment {
		defValue, isFound = "", true
	}
	if !isFound {
		return value, cs, isRedacted
	}

 *       class or its <i>trusted</i> dependencies is badly broken), this is what ordinary Java
 *       assertions are for. Note that assertions are not enabled by default; they are essentially
 *       considered "compiled comments."
 *   <li>An explicit {@code if/throw} (as illustrated below) is always acceptable; we still
 *       recommend using our {@link VerifyException} exception type. Throwing a plain {@link
 *       RuntimeException} is frowned upon.