[jboss-user] [JBoss Seam] - About the new chapter Caching in documentation.

[Seto]

I read the 18.1 chapter . And I don't understand. 
I think the example maybe should be changed as below. 
@Name("chatroom") 
public class Chatroom { 
    @In PojoCache pojoCache; 
     
    public void join(String username) { 
      try 
      { 
         Set userList = (Set) pojoCache.get("chatroom", "userList"); 
         if (userList==null) 
         { 
            userList = new HashSet(); 
         } 
         userList.add(username); 
         pojoCache.put("chatroom", "userList", userList); 
      } 
      catch (CacheException ce) 
      { 
         throw new RuntimeException(ce); 
      } 
    } 
} 

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