Spring ApplicationContext - Resource leak: 'context' is never closed

Question

In a spring MVC application, I initialize a variable in one of the service classes using the following approach:

ApplicationContext context = 
         new C         


        

Answer 1

Object obj = context.getBean("bean");
if(bean instanceof Bean) {
    Bean bean = (Bean) obj;
}

In my case leak disappears

Answer 2

A simple cast solves the issue:

((ClassPathXmlApplicationContext) fac).close();

Answer 3

Downcast the context to ConfigurableApplicationContext.

((ConfigurableApplicationContext)context).close();

Answer 4

for ApplicationContext you can't use close() method because this method doesn't define int it but instead you can use:(ClassPathXmlApplicationContext(context)).close()

Answer 5

As the Application context has an instance of ClassPathXmlApplicationContext and the same has a close() method. I would simply CAST the appContext object and invoke the close() method as below.

ApplicationContext appContext = new ClassPathXmlApplicationContext("spring.xml");
//do some logic
((ClassPathXmlApplicationContext) appContext).close();

This will fix the Resource Leak warning.

Answer 6

This worked out best for me.

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;


public class Test {

     private static ApplicationContext con;

     public static void main(String[] args) {

         con = new ClassPathXmlApplicationContext("config.xml");

         Employee ob = (Employee) con.getBean("obj");
         System.out.println("Emp Id " + ob.getEmpno());
         System.out.println("Emp name " + ob.getEmpname());
    }
}