code: private List<File> initFiles() throws IOException {
  		FileSet restriction = new FileSet();
  		File directory = buildSrcDirectory;
  		if (directory == null) {
  			directory = new File(".");
  			getLog().warn(SRC_NOT_SET);
  		}
  
  		getLog().debug(directory.getAbsolutePath());
  		restriction.setDirectory(directory.getAbsolutePath());
  
  		restriction.addInclude("**/*.aliaslib");
  
  		List<File> result = AbstractProjectsListMojo.toFileList(restriction);
  
  		if (customAliasLibDirectories != null && !customAliasLibDirectories.isEmpty()) {
  			for (File customDirectory : customAliasLibDirectories) {
  				getLog().debug("Looking for '.aliaslib' files in custom directory: " + customDirectory);
  				FileSet customRestriction = new FileSet();
  				customRestriction.setDirectory(customDirectory.getAbsolutePath());
  				customRestriction.addInclude("**/*.aliaslib");
  				result.addAll(AbstractProjectsListMojo.toFileList(customRestriction));
  			}
  		}
  
  		getLog().debug("List of '.aliaslib' files to update: " + result);
  		return result;
  	}
docs: This method retrieves a list of ".aliaslib" files to process in the
  source directory (usually "target/src") which is a copy of the actual
  source directory used to compile the TIBCO BusinessWorks EAR.