/**
     * Deletes the specified temporary directory.
     * Logs a warning if the directory cannot be deleted.
     *
     * @param ownTmpDir the temporary directory to delete
     */
    protected void deleteTempDir(final File ownTmpDir) {
        if (ownTmpDir == null) {
            return;
        }
        if (!FileUtils.deleteQuietly(ownTmpDir)) {

            super.addFessCustomSystemProperties(cmdList, regex);
        }

        public void testDeleteTempDir(File ownTmpDir) {
            super.deleteTempDir(ownTmpDir);
        }

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