Create ServiceBean

The Entity name is com.mastertheboss.model.SimpleProperty, change it at line 40
//Query query = em.createQuery("delete FROM com.sample.model.SimpleProperty p where p.key='"+p.getKey()+"'");
  Query query = em.createQuery("delete FROM com.mastertheboss.model.SimpleProperty p where p.key='"+p.getKey()+"'");
		
.
Merge pull request #1 from marcobattaglia/patch-1

A little error on delete.