@SuppressWarnings("unchecked")
    private static Class<MavenArtifactInstaller> loadImplClass() {
        try {
            return (Class<MavenArtifactInstaller>) CLASS_LOADER.loadClass(CLASS_NAME);
        } catch (final ClassNotFoundException ex) {
            throw new LinkageError("Dependencies for Maven are not loaded correctly: " + CLASS_NAME, ex);
        }
    }
Installs a Maven-based plugin in the local Maven repository.
embulk-core/src/main/java/org/embulk/plugin/maven/MavenArtifactInstaller.java