https://jira.jboss.org/jira/browse/JBIDE-5742 I didn't add the UI to change the execution environment because my logic right now is that I set which execution environment each server type should have at a minimum. This filters the list of possible vm's down. This should work if you have a server automatically configured, though the automatically configured server should *not* reference a jre it cannot use. It should instead not set the vm at all and trust that the execution environment will find a suitable vm when one is presented. Details and patch in the jira. Could use some testing or at least some more well-defined use cases.