@Override
  protected void configure() {

    Multibinder<Cleanable> multiBinder = Multibinder.newSetBinder(binder(), Cleanable.class);
    Set<Class<?>> bindingSet = ClasspathScannerUtils.findOnClassPath(getPackageToScan(), getExclusions(), getSelectors());
    for (Class clazz : bindingSet) {
      LOG.info("Binding cleaner {}", clazz);
      multiBinder.addBinding().to(clazz).in(Scopes.SINGLETON);
    }

    bind(CleanupServiceImpl.class).in(Scopes.SINGLETON);
  }
Returns the package to be scanned for bindings of this module.

@return the name of the package to be scanned
ambari-server/src/main/java/org/apache/ambari/server/cleanup/CleanupModule.java