assertNull(ResourceUtil.getFile(url));
    }

    private String getRoot() throws IOException {
        final String root = new File("/").getCanonicalPath().replace('\\', '/');
        if (root.startsWith("/")) {
            return root;
        }
        return "/" + root;
    }

[Fess Site Search](https://github.com/codelibs/fess-site-search) provides [scripts](https://fss-generator.codelibs.org/docs/manual) (see below) to help you migrate from GSS/CSE.
Using the, you can replace existing GSS/CSE JavaScript codes with:

```
<script>
  (function() {
    var fess = document.createElement('script');
    fess.type = 'text/javascript';
    fess.async = true;

     *
     * @param localeStr
     *            A string representing the locale
     * @return {@link Locale}
     */
    public static Locale getLocale(final String localeStr) {
        // TODO replace with Fess
        Locale locale = LocaleUtil.getDefault();
        if (localeStr != null) {
            final int index = localeStr.indexOf('_');
            if (index < 0) {
                locale = new Locale(localeStr);

which generates classes corresponding your outside-SQL files,
for example, entities, parameter-beans to specified
directories by DBFlute properties on "dfprop" directory.

manage.bat(sh) => 0 (replace-schema):
A execution command of ReplaceSchema task
which creates your tables and loads data by
resources located to the "playsql" directory.

manage.bat(sh) => 25 (outside-sql-test):

@SuppressWarnings("JUnit4ClassUsedInJUnit3")
@NullMarked
public abstract class AbstractCollectionTester<E extends @Nullable Object>
    extends AbstractContainerTester<Collection<E>, E> {

  // TODO: replace this with an accessor.
  protected Collection<E> collection;

  @Override
  protected Collection<E> actualContents() {
    return collection;
  }

  // TODO: dispose of this once collection is encapsulated.

@SuppressWarnings("JUnit4ClassUsedInJUnit3")
@NullMarked
public abstract class AbstractCollectionTester<E extends @Nullable Object>
    extends AbstractContainerTester<Collection<E>, E> {

  // TODO: replace this with an accessor.
  protected Collection<E> collection;

  @Override
  protected Collection<E> actualContents() {
    return collection;
  }

  // TODO: dispose of this once collection is encapsulated.

    /**
     * Artifact type name for a JAR file containing test classes. If the main artifact is placed on the class path
     * ({@value #JAR} or {@value #CLASSPATH_JAR} types), then the test artifact will also be placed on the class path.
     * Otherwise, if the main artifact is placed on the module path ({@value #JAR} or {@value #MODULAR_JAR} types),

            if (replacement == null) {
                replacement = matcher.group(1);
            }
            matcher.appendReplacement(tunedText, replacement.replace("\\", "\\\\").replace("$", "\\$"));

        }
        matcher.appendTail(tunedText);
        return tunedText.toString();
    }

        // The logic converts path to doc ID by removing path separators
        String pathStr = "_1/_2/docid123";
        String expectedDocId = "_1_2docid123";
        String actualDocId = pathStr.replace("/", "").replace("\\", "");
        assertEquals(expectedDocId, actualDocId);
    }

    // Test FilePurgeVisitor visitFileFailed
    public void test_FilePurgeVisitor_visitFileFailed() throws IOException {

        // Test without mappings
        assertEquals("path/to/file", generator.expandPath("path/to/file"));
        assertNull(generator.expandPath(null));

        // Test with exact match mappings (expandPath only replaces exact matches)
        generator.filePathMap.put("${home}/file", "/home/user/file");
        assertEquals("/home/user/file", generator.expandPath("${home}/file"));