MavenProperties properties;
        if (props instanceof MavenProperties mavenProperties) {
            properties = mavenProperties;
        } else {
            properties = new MavenProperties();
            properties.putAll(props);
        }
        return update(properties);
    }

    public boolean update(MavenProperties properties) {
        boolean modified = false;

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.model.interpolation;

import java.util.Properties;

import org.apache.maven.model.building.ModelBuildingRequest;

/**
 * Allows a fixed set of properties that are valid inside a version and that could be overwritten for example on the
 * commandline
 *

                    "type": "object",
                    "properties": {"message": {"title": "Message", "type": "string"}},
                },
                "ValidationError": {
                    "title": "ValidationError",
                    "required": ["loc", "msg", "type"],
                    "type": "object",
                    "properties": {
                        "loc": {

            "schemas": {
                "Item": {
                    "title": "Item",
                    "required": ["name", "price"],
                    "type": "object",
                    "properties": {
                        "name": {"title": "Name", "type": "string"},
                        "description": {
                            "title": "Description",

    modified_openapi = json.loads(tmp_file.read_text())
    assert modified_openapi == {
        "components": {
            "schemas": {
                "HTTPValidationError": {
                    "properties": {
                        "detail": {
                            "items": {
                                "$ref": "#/components/schemas/ValidationError",
                            },

    /**
     * Gets the system properties to use for interpolation and profile activation. The system properties are collected
     * from the runtime environment like {@link System#getProperties()} and environment variables.
     *
     * @return The execution properties, never {@code null}.
     */
    Map<String, String> getSystemProperties();

    /**

     * Parses a sequence of XML elements and converts them to the appropriate {@link Properties} type.
     *
     * @param parser The XML parser
     * @return Converted Properties instance
     */
    private static Properties parseProperties(final XmlPullParser parser) throws Exception {
        final Properties properties = newImplementation(parser, Properties.class);
        while (parser.nextTag() == XmlPullParser.START_TAG) {

                    "type": "object",
                    "properties": {"message": {"title": "Message", "type": "string"}},
                },
                "User": {
                    "title": "User",
                    "required": ["username", "email"],
                    "type": "object",
                    "properties": {
                        "username": {"title": "Username", "type": "string"},

        Files.writeString(mavenUserProps, "${includes} = ?\"${user.home}/maven.properties\"\n");
        Path userDirectory = fs.getPath("/user");
        Files.createDirectories(userDirectory);
        Path propsPath = userDirectory.resolve("maven.properties");
        Files.writeString(propsPath, "${includes} = default.properties,?env-${env.envName}.properties\n");

    MavenExecutionRequest setSystemProperties(Properties systemProperties);

    /**
     * Gets the system properties to use for interpolation and profile activation. The system properties are collected
     * from the runtime environment like {@link System#getProperties()} and environment variables.
     *
     * @return The system properties, never {@code null}.
     */
    Properties getSystemProperties();

    /**