if (classpathFile.exists() && !classpathFiles.contains(classpathFile)) {
            classpathFiles.add(classpathFile.getAbsoluteFile());
            addManifestClasspathFiles(classpathFile, classpathFiles);
        }
    }

    private static void addManifestClasspathFiles(File classpathFile, List<File> classpathFiles) {
        List<URI> classpathUris = ManifestUtil.parseManifestClasspath(classpathFile);