snjeza, I've tried latest nightly build of Maven Integration with developer ver. of m2eclipse and Subversion from tigris.org The following looks like a bug: The EJB project creates pretty well with proper JRE and Maven Dependencies build entries. But when I right-click on the project and choose Maven->Update Project configuration, proper JRE is removed and incorrect one is added: "J2SE-1.4 (jdk1.6.0_10)" Due to this an error appears on the project: EJB 3.0 requires Java 5 or newer The same behavior is when I check out project from SVN (SVN Repositories->right click on project->Check out as Maven Project), the project which is checked out, has following build path entry: "J2SE-1.4 (jdk1.6.0_10)" The list of Execution environment contains many entries like "J2SE-1.* (jdk1.6.0_10)", but all marked with (jdk1.6.0_10) View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4244369#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...