Max, Save me. Where does JBossTools get the org.jboss.seam.tool.Util class from? I added a method to it named isToOne() but FreeMarker doesn't seem to want to find this method when running generate-entities through JBossTools. My guess is that there is some other JAR somewhere that is being used rather than lib/gen/jboss-seam-gen.jar in the Seam distribution, but I could be wrong. On another note, we should move this isToOne() method into Hibernate Tools anyway. If you take a look at it (src/gen), I needed to create it because currently this information is not exposed as a built-in function call. A one-to-one and a many-to-one mapping are represented exactly the same in the UI, so I was able to offer an extra feature for those wanting to see one-to-one relationships in the UI out of the reverse engineering process. Only, it is causing JBossTools to bomb at the moment. -Dan -- Dan Allen Software consultant | Author of Seam in Action http://mojavelinux.com http://mojavelinux.com/seaminaction NOTE: While I make a strong effort to keep up with my email on a daily basis, personal or other work matters can sometimes keep me away from my email. If you contact me, but don't hear back for more than a week, it is very likely that I am excessively backlogged or the message was caught in the spam filters. Please don't hesitate to resend a message if you feel that it did not reach my attention.