Hi, We are currently using JBoss AS 4.2.1 GA. An update to a newer version is not possible due to JBoss WS changes. Our JBoss distribution has a serious Hibernate bug that we want to fix. As found in the MANIFEST the Hibernate version that our JBoss uses is 3.2.4 SP1 I downloaded the source code from hibernate.org for exactly this version. Compiling works fine, but as I found out the original hiberante3.jar in my JBoss contains classes that are not included in the Hibernate source code. E.g. the following classes are missing in the Hibernate source code: org.hibernate.dialect.Oracle9iDialect org.hibernate.dialect.Oracle10gDialect Does anybody know where to find this classes and why those are missing in my Hiberante version? The manifest of the original hibernate3.jar shows the following: Implementation-Title: Hibernate3 Specification-Vendor: JBoss (http://www.jboss.org/) Specification-Version: 4.2.1.GA Implementation-Vendor-Id: http://www.jboss.org/ Hibernate-Version: 3.2.4.sp1 Implementation-Version: 3.2.4.sp1 Implementation-Vendor: hibernate.org Implementation-URL: http://www.jboss.org/ Thank u! bye, Georg View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4235584#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...