private static final Pattern ATTRIBUTE_SEPARATOR = Pattern.compile("\\s*=\\s*");
    private static final Pattern END_ELEMENT_NAME = Pattern.compile("\\s+|(/>)|>");
    private static final Pattern END_ELEMENT = Pattern.compile("(/>)|>");
    private static final Pattern HTML_ENCODED_CHAR = Pattern.compile("&#\\d+;");
    private static final Pattern HTML_ENTITY = Pattern.compile("&.+?;");

        TimeUnit unit,
        Class<?> cls,
        Joiner joiner,
        Pattern pattern,
        UnsignedInteger ui,
        UnsignedLong ul,
        StringBuilder sb,
        Predicate<?> pred,
        Function<?, ?> func,
        Object obj) {
      delegate.foo(
          s, r, n, it, b, eq, e, in, c, ord, charset, unit, cls, joiner, pattern, ui, ul, sb, pred,
          func, obj);
    }

    @Override

  }

  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)

/**
 * 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() {

        try {
            final String pattern = getPattern(messageCode);
            if (pattern != null) {
                return MessageFormat.format(pattern, args);
            }
            return getNoPatternMessage(args);
        } catch (final Throwable ignore) {
            return getNoPatternMessage(args);
        }
    }

    /**
     * Returns the pattern string corresponding to the message code.
     *

  }

  static String stringValueOf(@Nullable Object o) {
    return String.valueOf(o);
  }

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

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

  private static PatternCompiler loadPatternCompiler() {

			<PatternLayout><Pattern>${log.pattern}</Pattern></PatternLayout><!-- <EcsLayout serviceName="fess" eventDataset="app" /> -->
			<Policies>
				<TimeBasedTriggeringPolicy />
				<SizeBasedTriggeringPolicy size="100 MB" />
			</Policies>
			<DefaultRolloverStrategy fileIndex="max" min="1"
				max="${backup.max.history}" compressionLevel="9">

    /**
     * The pattern for numbers.
     */
    protected String pattern;

    /**
     * Constructs an instance.
     *
     * @param pattern
     *            the pattern for numbers
     */
    public NumberConverter(final String pattern) {
        assertArgumentNotEmpty("pattern", pattern);
        this.pattern = pattern;
    }

    @Override

    /**
     * The pattern for the date and time.
     */
    protected String pattern;

    /**
     * Constructs an instance.
     *
     * @param pattern
     *            the pattern for date and time
     */
    public TimestampConverter(final String pattern) {
        assertArgumentNotEmpty("pattern", pattern);
        this.pattern = pattern;
    }

    @Override