static UnicodeSet.XSymbolTable NO_PROPS =
            new UnicodeSet.XSymbolTable() {
                @Override
                public boolean applyPropertyAlias(
                        String propertyName, String propertyValue, UnicodeSet result) {
                    throw new IllegalArgumentException(
                            "Don't use any ICU Unicode Properties! "
                                    + propertyName
                                    + "="
                                    + propertyValue);
                }
                ;
            };

    static {
        UnicodeSet.setDefaultXSymbolTable(NO_PROPS);
    }