You need to have a base directory under which the client libraries of the various jboss x.y.z are stored, e.g. jboss-versions 4_2_0_GA 4_2_x 5_0_x The from the branch_4_2/testsuite directory try: build tests-matrix -Dnojars=true -Dmatrix-versions=x:\jboss-versions -Djdk14=X:\tools\j2sdk1.4.2_09 -Djdk15=c:\home\tools\jdk1.5.0_09 I usually comment out in the testsuite/build.xml all the combinations that do not interest me. In this case you can leave only the 5_0_x tests to run. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4193198#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...