java - Why is my Spring Boot application creating durable queue in one program and non-durable in another in RabbitMQ -

i have 2 spring based programs. both of them publishes simple "hello world" message onto queues (gets created automatically) successfully. 1 program creates non-durable queue whereas other 1 creates durable. program not specifying parameters creating either of these. not sure how queue creation in spring framework works.

basicapplication1.java

@springbootapplication public class basicapplication1 {      private static rabbittemplate rabbittemplate;     private static final string queue_name = "helloworld.q";      @bean     public queue queue() {         return new queue(queue_name, false);     }      //creates "non-durable" queue in rabbitmq     public static void main(string[] args) {         try (configurableapplicationcontext ctx = springapplication.run(basicapplication1.class, args)) {             rabbittemplate = ctx.getbean(rabbittemplate.class);             rabbittemplate.convertandsend(queue_name, "hello world !");         }     }  } 

basicapplication2.java

@springbootapplication public class basicapplication2{      @bean     public queue queue() {         return new queue("helloworld2.q");     }      public static void main(string[] args) {         springapplication.run(basicapplication2.class, args);     }  } 

producer.java

@component public class producer implements commandlinerunner {      @autowired     private rabbittemplate rabbittemplate;      @autowired     private queue queue;      //creates "durable" queue in rabbitmq     @override     public void run(string... args) throws exception {         this.rabbittemplate.convertandsend(this.queue.getname(), "hello world !");     }  }