Steps to reproduce:

• install Eclipse on one drive (C:, for instance) and JBoss AS on another (E:, for instance)
• download the dynwebapp project attached to https://bugs.eclipse.org/bugs/show_bug.cgi?id=328974
• start Eclipse
• deploy the project to JBoss AS

The webmodule.jar module will be deployed to C:/<JBOSS_DEPLOY>/dynwebapp.war/WEB-INF/lib instead of to E:/<JBOSS_DEPLOY>/dynwebapp.war/WEB-INF/lib.