in src/main/org/apache/ant/antunit/AntUnit.java [271:287]
private void doResourceCollection(ResourceCollection rc) {
//should relax this restriction if/when Ant core allows non-files
if (!rc.isFilesystemOnly()) {
throw new BuildException(ERROR_NON_FILES);
}
@SuppressWarnings("unchecked")
Iterable<Resource> iterable = (Iterable<Resource>) rc;
for (Resource resource : iterable) {
FileResource r = (FileResource) resource;
if (r.isExists()) {
doFile(r.getFile());
} else {
log("Skipping " + r + " since it doesn't exist", Project.MSG_VERBOSE);
}
}
}