Miscellany

public class MigrationSpringContext {
  private static ConfigurableApplicationContext context;
  private static boolean init = false;

  public static ConfigurableApplicationContext getContext() {
    if(init) return context;
    synchronized(MigrationSpringContext.class) {
      if(init) return context;
      context = new ClassPathXmlApplicationContext("fbesuie");
      init = true;
      return context;
    }
  }
}