public static final String OVERRIDE_PREFIX =
            "maven.override."; // prefix that marks that system property should override defaults.

    public static void loadProperties(
            java.util.Properties properties, Path path, UnaryOperator<String> callback, boolean escape)
            throws IOException {
        MavenProperties sp = new MavenProperties(false);

    public static final String OVERRIDE_PREFIX =
            "maven.override."; // prefix that marks that system property should override defaults.

    public static void loadProperties(
            java.util.Properties properties, Path path, UnaryOperator<String> callback, boolean escape)
            throws IOException {
        MavenProperties sp = new MavenProperties(false);

                systemProperties::getProperty);
        Path propertiesFile = mavenConf.resolve("maven-system.properties");
        try {
            MavenPropertiesLoader.loadProperties(systemProperties, propertiesFile, callback, false);
        } catch (IOException e) {
            throw new IllegalStateException("Error loading properties from " + propertiesFile, e);
        }

final class WrapperExecutor { public final java.util.Properties properties; public final java.io.File propertiesFile; public final WrapperConfiguration config; public void WrapperExecutor(java.io.File, java.util.Properties); public static void loadProperties(java.io.File, java.util.Properties); public final String readDistroUrl(); public final String getProperty(String, String); public final int getProperty(int); public final boolean getProperty(boolean); public final String getProperty(String, String,...

        }
        Path systemPropertiesFile = mavenConf.resolve("maven-system.properties");
        MavenPropertiesLoader.loadProperties(systemProperties, systemPropertiesFile, callback, false);
        Path userPropertiesFile = mavenConf.resolve("maven-user.properties");
        MavenPropertiesLoader.loadProperties(userProperties, userPropertiesFile, callback, false);