The ivyconf.xml classpath tag accepts file or url elements which seem capable of pointing to only a single classpath element, either a path or a jar. Can a full classpath be expressed?
For instance, I would like to set an ant property called my.classpath and have it contain something like "a.jar:b.jar:c.jar". I'd like to use that property in my ivyconf.xml in a classpath element to set the classpath for resolver with complex dependencies
Sounds like a good idea, but this is not implemented yet. Open a jira issue.