title: How many sessions can be managed by an Java Application in Struts 2?
body: <p>I am working on Transaction Management application, and I am using Struts2.
  I have used internally a session for setting and getting values like </p>
  
  <pre><code>ActionContext.getContext().getSession().put("string", string);
  </code></pre>
  
  <p>Is there any limit or any disadvantage of using a session like this in the application?</p>