* @param buf the StringBuilder to append to
     * @param libDir the directory containing JAR files
     * @param basePath the base path to prepend to JAR file names
     */
    protected void appendJarFile(final String cpSeparator, final StringBuilder buf, final File libDir, final String basePath) {
        final File[] jarFiles = libDir.listFiles((FilenameFilter) (dir, name) -> name.toLowerCase().endsWith(".jar"));

            super.deleteTempDir(ownTmpDir);
        }

        public void testAppendJarFile(String cpSeparator, StringBuilder buf, File libDir, String basePath) {
            super.appendJarFile(cpSeparator, buf, libDir, basePath);
        }

        public TimeoutTask testCreateTimeoutTask() {
            return super.createTimeoutTask();
        }