if (Files.isRegularFile(toolsJar)) {
                rootFiles.add(toolsJar);
            }
        }

        Set<String> pathFilter = CollectionFactory.createFilePathSet();
        for (Path jarDir : jarDirs) {
            if (jarDir != null && Files.isDirectory(jarDir)) {
                try (DirectoryStream<Path> stream = Files.newDirectoryStream(jarDir, "*.jar")) {