[RuntimeException: No EntityManager bound to this thread. Try to annotate your action method with @play.db.jpa.Transactional]

Root cause :- I was trying to access an Entity object from Play framework Controller.

Solution :
First I tried to annotate the method that calls the JPA object with 

@play.db.jpa.Transactional

But It did n't help, finally i got the issue resolved by using the following piece of code.

 private static void populateList (String company, String uid) {

        

     final String dbName = company;

     final String Uid = uid;

     try {

         JPA.withTransaction(company, true,

                 new play.libs.F.Function0() {

                     @Override

                     public Void apply() throws Throwable {

                         List bhaList = BHA.findByUidWell(dbName, Uid);

                         System.out.println(bhaList.size());

                         return null;

                     }

                 });

     } catch (Throwable throwable) {

         Logger.error("Error: ", throwable);

     }

        

    }

Hope this helps :)