TSMaster m0 = new TSMaster();
m0.setName("master1");
Ebean.save(m0);
m0.addDetail(new TSDetail("master1 detail1"));
m0.addDetail(new TSDetail("master1 detail2"));
Ebean.saveAssociation(m0, "details");
TSMaster m0Check = Ebean.find(TSMaster.class).fetch("details").where().idEq(m0.getId())