The as7.1 runtime type's default list of classpath jars does not include a critical folder / jar, specifically modules/org/jboss/ejb3/main/*.jar, which includes support for the @SecurityDomain annotation. Without this, users must fiddle with classpaths and search for jars manually.

A workaround, as noted in JBIDE-10463, is to add the folder / fileset to the list of default classpath entries for the runtime type. However, due to that specific bug, a workspace restart will be required for these changes to take effect.