public static synchronized DependencyInjectorModule getModule() {
    Preconditions.checkState(sModule != null, "Not initialized");
    return sModule;
  }
Closes any resources and objects held by this injector. To use the injector again, invoke
{@link #resetForIntegrationTesting(Context)}.
java/com/google/android/apps/authenticator/testability/DependencyInjector.java