"mhinten" wrote : | - JDK 1.5 !! JDK 1.6 won't work !! | It works with JDK 1.6 too: http://in.relation.to/Bloggers/EmbeddedJBossUpdate For me it was enough only to set the following VM argument in the test run configuration: -Dsun.lang.ClassLoader.allowArraySyntax=true Eclipse TestNG plugin has been configured according to readme.txt in the project src/test directory My environment: - JBDS 1.0.0.GA - Seam 2.0.0.GA - Project generated with seam-gen - JDK 1.6.0 View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4117953#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...