problems in parsing the xml with the special characters

Hi, I have a problem, in while parsing the xml with special characters apstrophe('). I am getting the exception Caused by: javax.xml.transform.TransformerException: misquoted literal... expected single quote!

I am passing the String adam's. when i parse this string in xml path. i am not able to fetch the adam's string in the xml.

Below is the example :

String titlepath=/InvestmentProposal/ProposedAssetAllocations/Scenarios/Scenario[IsSelected = '1']/Accounts/Account[AccountTitle='adam's']/Sleeve[IsModel='1']/AccountId/text()

method to fetch the xml: xmlManipulator.parseXPath(doc,titlePath);

here doc is nothing but the xml.

xmlManipulator.java

public class XMLManipulator {

private final Document doc;
private final XPath xpath;

public String[] parseXPath(Document doc1,String xmlPath) throws ParserConfigurationException, SAXException, IOException, XPathExpressionException {

    int i;
    XPathExpression expr = xpath.compile(xmlPath);
    Object obj = expr.evaluate(doc1, XPathConstants.NODESET);
    NodeList nodes = (NodeList) obj;
    String[] result;
    int nodeLength = nodes.getLength();
    if (nodeLength == 0) {
        return null;
    } else {
        result = new String[nodeLength];
        for (i = 0; i < nodeLength; i++) {
            result[i] = nodes.item(i).getNodeValue();
        }
        return result;
    }
}
}

Please solve the issue that it in the xml it is searching as string adam's'.but in Xml is adam's only. How to unescape the apstophe in while passing . I tried to unescape the character (').

below is the sample one:

private String escape(String input) {

    String result = "";
    for (int i = 0; i < input.length(); i++) {
    if ("'".indexOf(input.charAt(i)) >= 0) {
    result += "\'";
    } else {
    result += input.charAt(i);

    }
    }
    return result;

    }