[jboss-user] [EJB/JBoss] - many-to-many problem when passing collection

Hi, I am ramu, i am getting a problem when persisting data in many to many mapping. vendor---->industry is many to many mapping I am taking two industries objects and passing them to one vendor as a collection Vendor v = manager.find(Vendor.class, 3); Industry i = manager.find(Industry.class, 2); Industry i1 = manager.find(Industry.class, 3); List l1 = new ArrayList(); l1.add(i); l1.add(i1); v.setIndustries(l1); v.getIndustries().add(i); i.getVendors().add(v); manager.persist(v); it is adding only one row in join table.but it should add two records for vendor 3 any help please Thank you KRamu View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4198212#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...