This is the following standard code to parse XML using XPath in Java. I am unable to debug why I am getting null values. I have attached the java file, the xml file and the output. Would appreciate if somebody can explain a little where I am going wrong. Thanks in advance! 
XPathParser.java\[code\]import javax.xml.parsers.DocumentBuilder;import javax.xml.parsers.DocumentBuilderFactory;import javax.xml.xpath.XPath;import javax.xml.xpath.XPathConstants;import javax.xml.xpath.XPathExpression;import javax.xml.xpath.XPathFactory;import org.w3c.dom.Document;import org.w3c.dom.NodeList;public class XPathParser { public static void main(String args[]) throws Exception { //loading the XML document from a file DocumentBuilderFactory builderfactory = DocumentBuilderFactory.newInstance(); builderfactory.setNamespaceAware(true); //XML read DocumentBuilder builder = builderfactory.newDocumentBuilder(); Document xmlDocument = builder.parse("Stocks.xml"); // Creates a XPath factory XPathFactory factory = javax.xml.xpath.XPathFactory.newInstance(); //Creates a XPath Object XPath xPath = factory.newXPath(); //Compiles the XPath expression //XPathExpression xPathExpression_count = xPath.compile("count(//stock)"); XPathExpression xPathExpression = xPath.compile("//stock"); //Run the query and get a nodeset Object result = xPathExpression.evaluate(xmlDocument,XPathConstants.NODESET); //Cast the result into a DOM nodelist NodeList nodes = (NodeList) result; System.out.println(nodes.getLength()); System.out.println(nodes.item(0)); for (int i=0; i<nodes.getLength();i++){ System.out.println(nodes.item(i).getNodeValue()); } }}\[/code\]Stocks.xml\[code\]<?xml version="1.0" encoding="UTF-8"?><stocks> <stock> <symbol>ABC</symbol> <price>10</price> <quantity>50</quantity> </stock> <stock> <symbol>XYZ</symbol> <price>20</price> <quantity>1000</quantity> </stock></stocks>\[/code\]OUTPUT:\[code\]2[stock: null]nullnull\[/code\]
XPathParser.java\[code\]import javax.xml.parsers.DocumentBuilder;import javax.xml.parsers.DocumentBuilderFactory;import javax.xml.xpath.XPath;import javax.xml.xpath.XPathConstants;import javax.xml.xpath.XPathExpression;import javax.xml.xpath.XPathFactory;import org.w3c.dom.Document;import org.w3c.dom.NodeList;public class XPathParser { public static void main(String args[]) throws Exception { //loading the XML document from a file DocumentBuilderFactory builderfactory = DocumentBuilderFactory.newInstance(); builderfactory.setNamespaceAware(true); //XML read DocumentBuilder builder = builderfactory.newDocumentBuilder(); Document xmlDocument = builder.parse("Stocks.xml"); // Creates a XPath factory XPathFactory factory = javax.xml.xpath.XPathFactory.newInstance(); //Creates a XPath Object XPath xPath = factory.newXPath(); //Compiles the XPath expression //XPathExpression xPathExpression_count = xPath.compile("count(//stock)"); XPathExpression xPathExpression = xPath.compile("//stock"); //Run the query and get a nodeset Object result = xPathExpression.evaluate(xmlDocument,XPathConstants.NODESET); //Cast the result into a DOM nodelist NodeList nodes = (NodeList) result; System.out.println(nodes.getLength()); System.out.println(nodes.item(0)); for (int i=0; i<nodes.getLength();i++){ System.out.println(nodes.item(i).getNodeValue()); } }}\[/code\]Stocks.xml\[code\]<?xml version="1.0" encoding="UTF-8"?><stocks> <stock> <symbol>ABC</symbol> <price>10</price> <quantity>50</quantity> </stock> <stock> <symbol>XYZ</symbol> <price>20</price> <quantity>1000</quantity> </stock></stocks>\[/code\]OUTPUT:\[code\]2[stock: null]nullnull\[/code\]