private static Path getProjectRootDir() {
        Path path = Paths.get(System.getProperty("user.dir"));
        while (!Files.exists(path.resolve("mvnw"))) {
            path = path.getParent();
        }
        return path;
    }
ITVersions is a utility class to read the version information from the environment file.
oap-server/server-library/library-integration-test/src/main/java/org/apache/skywalking/oap/server/library/it/ITVersions.java