*  @return An XPathEvaluationResult, which can be used to obtain a string, number, nodelist, etc, should never be null.
     *
     * @throws XPathExpressionException
     */
    public XPathEvaluationResult<?> eval(final Node contextNode, final String expression) throws XPathExpressionException {
        return xPath.evaluateExpression(expression, contextNode);
    }

    /**
     * Use an XPath string to select a single node.
     *

#    -v            print fess version, then exit
#    -D prop       set JAVA system property
#    -X prop       set non-standard JAVA system property
#   --prop=val
#   --prop val     set fess property (i.e.  -Des.<prop>=<val>)

CDPATH=""
SCRIPT="$0"

# SCRIPT may be an arbitrarily deep series of symlinks. Loop until we have the concrete path.
while [ -h "$SCRIPT" ] ; do
  ls=`ls -ld "$SCRIPT"`

            xpathAPI.remove();
        }
    }

    protected String[] getStringsByXPath(final Document document, final String path) {
        try {
            final XPathEvaluationResult<?> xObj = getXPathAPI().eval(document, path);
            switch (xObj.type()) {
            case BOOLEAN:
                final Boolean b = (Boolean) xObj.value();
                return new String[] { b.toString() };
            case NUMBER:

        for (final Map.Entry<String, String> entry : fieldRuleMap.entrySet()) {
            final String path = entry.getValue();
            try {
                final XPathEvaluationResult<?> xObj = getXPathAPI().eval(document, path);
                switch (xObj.type()) {
                case BOOLEAN:
                    final Boolean b = (Boolean) xObj.value();
                    buf.append(getResultDataBody(entry.getKey(), b.toString()));