- Verify property keys match exactly with base English files

### Build errors after regeneration

- Check property file syntax (no unescaped special characters)
- Ensure all property values are properly escaped
- Run `mvn clean` before rebuilding

## Additional Resources

- Fess Configuration: `src/main/resources/fess_config.properties`

        }
        return Pattern.quote(s);
    }

    /**
     * Unescapes double backslashes in regex patterns.
     * Converts escaped backslashes (\\) back to single backslashes (\).
     *
     * @param s the string to unescape
     * @return the unescaped string
     */
    protected String unescape(final String s) {
        return s.replace("\\\\", "\\");
    }

    /**

  @AndroidIncompatible // Android forbids null parent ClassLoader
  // https://github.com/google/guava/issues/2152
  public void testJarFileWithSpaces() throws Exception {
    URL url = makeJarUrlWithName("To test unescaped spaces in jar file name.jar");
    URLClassLoader classloader = new URLClassLoader(new URL[] {url}, null);
    assertThat(ClassPath.from(classloader).getTopLevelClasses()).isNotEmpty();
  }

  @AndroidIncompatible // Android forbids null parent ClassLoader
  // https://github.com/google/guava/issues/2152
  public void testJarFileWithSpaces() throws Exception {
    URL url = makeJarUrlWithName("To test unescaped spaces in jar file name.jar");
    URLClassLoader classloader = new URLClassLoader(new URL[] {url}, null);
    assertThat(ClassPath.from(classloader).getTopLevelClasses()).isNotEmpty();
  }

    }

    /**
     * <p>Unescapes any Java literals found in the <code>String</code> to a
     * <code>Writer</code>.</p> This is a slightly modified version of the
     * StringEscapeUtils.unescapeJava() function in commons-lang that doesn't
     * drop escaped separators (i.e '\,').
     *
     * @param str  the <code>String</code> to unescape, may be null
     * @return the processed string

A rune literal is expressed as one or more characters enclosed in single quotes,
as in <code>'x'</code> or <code>'\n'</code>.
Within the quotes, any character may appear except newline and unescaped single
quote. A single quoted character represents the Unicode value
of the character itself,
while multi-character sequences beginning with a backslash encode
values in various formats.
</p>

<p>

                        inputs[i] = unescape(inputStrings.get(i)).trim();
                    }

                    final List<String> outputStrings = split(sides.get(1), ",");
                    outputs = new String[outputStrings.size()];
                    for (int i = 0; i < outputs.length; i++) {
                        outputs[i] = unescape(outputStrings.get(i)).trim();
                    }

        assertEscaping(xmlEscaper, """, ch);
      } else {
        String input = String.valueOf(ch);
        String escaped = xmlEscaper.escape(input);
        assertEquals(
            "char 0x" + Integer.toString(ch, 16) + " should not be escaped", input, escaped);
      }
    }

    // Test that 0xFFFE and 0xFFFF are replaced with 0xFFFD
    assertEscaping(xmlEscaper, "\uFFFD", '\uFFFE');

                    }
                    continue; // ignore empty lines and comments
                }

                final String inputStrings = line;
                final String input = unescape(inputStrings);

                if (input.length() > 0) {
                    id++;
                    final ProtwordsItem item = new ProtwordsItem(id, input);
                    if (updater != null) {

                    }
                    continue; // ignore empty lines and comments
                }

                final String inputStrings = line;
                final String input = unescape(inputStrings);

                if (input.length() > 0) {
                    id++;
                    final StopwordsItem item = new StopwordsItem(id, input);
                    if (updater != null) {