if (StringUtil.isNotBlank(fessConfig.getIndexDictionaryPrefix())) {
            String dictionaryPath = System.getProperty("fess.dictionary.path", StringUtil.EMPTY);
            if (StringUtil.isBlank(dictionaryPath)) {
                System.setProperty("fess.dictionary.path", fessConfig.getIndexDictionaryPrefix() + "/");
            } else {
                if (!dictionaryPath.endsWith("/")) {

     * The value is, e.g.  <br>
     * comment: Prefix for dictionary index names.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getIndexDictionaryPrefix();

    /**
     * Get the value for the key 'index.dictionary.prefix' as {@link Integer}. <br>
     * The value is, e.g.  <br>
     * comment: Prefix for dictionary index names.