* @exception InclusionScanException
*/
@NotNull
private List<List<String>> processGrammarFiles(List<String> args, File sourceDirectory) throws InclusionScanException {
// Which files under the source set should we be looking for as grammar files
SourceMapping mapping = new SuffixMapping("g4", Collections.<String>emptySet());
// What are the sets of includes (defaulted or otherwise).
Set<String> includes = getIncludesPatterns();
// Now, to the excludes, we need to add the imports directory