SimpleTag (String preloaderFiles, boolean includeSelf, String allButPreloader, String allButSelf, String all) { final SimpleTag resourcesTag = new SimpleTag("fx:resources"); if (preloaderFiles != null) { resourcesTag.add(new SimpleTag("fx:fileset", Couple.of("refid", preloaderFiles))); resourcesTag.add(new SimpleTag("fx:fileset", Couple.of("refid", includeSelf ? allButPreloader : allButSelf))); } else { resourcesTag.add(new SimpleTag("fx:fileset", Couple.of("refid", includeSelf ? all : allButSelf))); } return resourcesTag; }