private final int minor;
    private final int revision;
    private final Qualifier qualifier;

    private static final Pattern pattern = Pattern.compile(
        "^v? (\\d+) \\. (\\d+) \\. (\\d+) (?: - (alpha\\d+ | beta\\d+ | rc\\d+ | SNAPSHOT ) )? $",
        Pattern.COMMENTS
    );

    private QualifiedVersion(int major, int minor, int revision, String qualifier) {
        this.major = major;

  }

  static CommonPattern compilePattern(String pattern) {
    Preconditions.checkNotNull(pattern);
    return patternCompiler.compile(pattern);
  }

  static boolean patternCompilerIsPcreLike() {
    return patternCompiler.isPcreLike();
  }

  private static PatternCompiler loadPatternCompiler() {
    // We want the JDK Pattern compiler:
    // - under Android (where it hurts startup performance)

    /** Pattern used to match file paths that this creator can handle. */
    protected Pattern pattern;

    /** Manager for dictionary operations and lifecycle. */
    @Resource
    protected DictionaryManager dictionaryManager;

    /**
     * Creates a new DictionaryCreator with the specified pattern.
     *
     * @param pattern the regular expression pattern to match file paths
     */

     * @param pattern
     *            The pattern string
     * @return The converted {@literal int}
     */
    public static int toPrimitiveInt(final Object o, final String pattern) {
        return switch (o) {
        case null -> 0;
        case Number n -> n.intValue();
        case String s -> toPrimitiveInt(s);

     */
    private static final String EXCLUDE = "exclude";

    /**
     * Cache for include filters.
     */
    protected LoadingCache<String, List<Pattern>> includeFilterCache;

    /**
     * Cache for exclude filters.
     */
    protected LoadingCache<String, List<Pattern>> excludeFilterCache;

    /**
     * The expiration time for the filter cache in seconds.
     */

     */
    public static CopyOptions dateConverter(final String pattern, final CharSequence... propertyNames) {
        return new CopyOptions().dateConverter(pattern, propertyNames);
    }

    /**
     * Returns a {@link CopyOptions} with a SQL date converter applied.
     *
     * @param pattern
     *            The date pattern. Must not be {@literal null} or an empty string.
     * @param propertyNames

/**
 * The subset of the {@link java.util.regex.Pattern} API which is used by this package, and also
 * shared with the {@code re2j} library. For internal use only. Please refer to the {@code Pattern}
 * javadoc for details.
 */
@GwtCompatible
abstract class CommonPattern {
  public abstract CommonMatcher matcher(CharSequence t);

  public abstract String pattern();

  public abstract int flags();

    }

    /**
     * Gets the compiled pattern for matching sensitive property/environment variable keys.
     * The pattern is read from the system property 'app.log.sensitive.property.pattern'.
     * If not set, a default pattern matching common sensitive key names is used.
     *
     * @return The compiled Pattern for sensitive key matching
     */
    private static Pattern getSensitivePattern() {

    }

    /**
     * Converts to {@link Double}.
     *
     * @param o
     *            The object to convert
     * @param pattern
     *            The pattern string
     * @return The converted {@link Double}
     */
    public static Double toDouble(final Object o, final String pattern) {
        if (o == null) {
            return null;
        } else if (o instanceof Double) {
            return (Double) o;

        if (name == null) {
            throw new InvalidUserDataException("Missing [name] for invalid pattern rule");
        }
        String pattern = props.remove("pattern");
        if (pattern == null) {
            throw new InvalidUserDataException("Missing [pattern] for invalid pattern rule");
        }
        if (props.isEmpty() == false) {