<dependency>
    <groupId>org.reflections</groupId>
    <artifactId>reflections</artifactId>
    <version>0.9.11</version>
</dependency>

URLClassLoader classLoader = new URLClassLoader(new URL[]{
        new URL("")
});
Class cls = classLoader.loadClass("com.tracholar.tutorial.ArticleRecEngine");
cls.newInstance();

Reflections reflections = new Reflections("my.project");

Set<Class<? extends SomeType>> subTypes = reflections.getSubTypesOf(SomeType.class);

Set<Class<?>> annotated = reflections.getTypesAnnotatedWith(SomeAnnotation.class);