I downloaded and build the 5.0GA JBoss AS, then started loading it into eclipse anyways, I have this exception(but none of these *.java files are part of the source)..... Caused by: java.lang.IllegalStateException: persistence.unit:unitName=#oracle is already installed. | at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:716) | at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:540) | at org.jboss.deployers.vfs.deployer.kernel.BeanMetaDataDeployer.deploy(BeanMetaDataDeployer.java:121) | In what download do I get these source files from? thanks, Dean View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4198333#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...