Matcher matcher = EXPRESSION_PROJECT_NAME_PATTERN.matcher(s);
                while (matcher.find()) {
                    String propertyName = matcher.group(0);

                    if (path.startsWith("activation.file.") && "${project.basedir}".equals(propertyName)) {
                        continue;
                    }
                    addViolation(
                            problems,

        return new CopyOptions().converter(converter, propertyNames);
    }

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

     */
    public Set<String> getPropertyNames() {
        Set<String> propertyNames = new TreeSet<String>();
        propertyNames.addAll(declaredProperties.keySet());
        ClassMetaData superClass = getSuperClass();
        if (superClass != null) {
            propertyNames.addAll(superClass.getPropertyNames());
        }
        return propertyNames;
    }

    private PropertyMetaData getProperty(String name) {

        lastModified = propertiesFile.lastModified();
        prop.loadFromXML(in);
        properties = prop;
    }

    @Override
    public Enumeration<?> propertyNames() {
        return getProperties().propertyNames();
    }

    @Override
    public Object put(final Object key, final Object value) {
        return getProperties().put(key, value);
    }

    @Override

        else -> localhost()
      }

    val isAndroid: Boolean
      get() = Platform.Companion.isAndroid

    companion object {
      const val PROPERTY_NAME = "okhttp.platform"
      const val CONSCRYPT_PROPERTY = "conscrypt"
      const val CORRETTO_PROPERTY = "corretto"
      const val JDK9_PROPERTY = "jdk9"
      const val JDK8_ALPN_PROPERTY = "jdk8alpn"

    val propertyNames =
        if (hasIsGetterName) listOf(method.name)
        else {
            val prefixRemoved = method.name.drop(3)
            if (hasSetterName && isBoolean) listOf("is$prefixRemoved", prefixRemoved.decapitalize())
            else listOf(prefixRemoved.decapitalize())
        }

    val propertyQualifiedNames =
        propertyNames.map { "$qualifiedBaseName.$it" }

        substitute(sp, callback);
        sp.forEach(properties::setProperty);
    }

    public static void substitute(MavenProperties props, UnaryOperator<String> callback) {
        for (Enumeration<?> e = props.propertyNames(); e.hasMoreElements(); ) {
            String name = (String) e.nextElement();
            String value = props.getProperty(name);
            if (value == null) {
                value = callback.apply(name);

        substitute(sp, callback);
        sp.forEach(properties::setProperty);
    }

    public static void substitute(MavenProperties props, UnaryOperator<String> callback) {
        for (Enumeration<?> e = props.propertyNames(); e.hasMoreElements(); ) {
            String name = (String) e.nextElement();
            String value = props.getProperty(name);
            if (value == null) {
                value = callback.apply(name);

  @GwtIncompatible // Maps.fromProperties
  public void testFromPropertiesNullKey() {
    Properties properties =
        new Properties() {
          @Override
          public Enumeration<?> propertyNames() {
            return Iterators.asEnumeration(asList(null, "first", "second").iterator());
          }
        };
    properties.setProperty("first", "true");
    properties.setProperty("second", "null");

  @GwtIncompatible // Maps.fromProperties
  public void testFromPropertiesNullKey() {
    Properties properties =
        new Properties() {
          @Override
          public Enumeration<?> propertyNames() {
            return Iterators.asEnumeration(asList(null, "first", "second").iterator());
          }
        };
    properties.setProperty("first", "true");
    properties.setProperty("second", "null");