Jaxp13XPathTemplate - utility for extracting data by XPath fom XML

Jaxp13XPathTemplate - it is a java class from Spring Framework for extracting data by XPath from XML.

Example:

String id = xpathTemplate.evaluateAsString("/products/product/id", productRequest);

More here: http://static.springsource.org/spring-ws/site/apidocs/org/springframework/xml/xpath/Jaxp13XPathTemplate.html

XmlUnit - JUnit testing for XML

XMLUnit for Java provides two JUnit extension classes, XMLAssert and XMLTestCase, and a set of supporting classes (e.g. Diff, DetailedDiff,Transform,SimpleXpathEngine,Validator,NodeTest) that allow assertions to be made about:

• The differences between two pieces of XML
• The outcome of transforming a piece of XML using XSLT
• The evaluation of an XPath expression on a piece of XML
• The validity of a piece of XML
• Individual nodes in a piece of XML that are exposed by DOM Traversal

XMLUnit for Java can also treat HTML content (even badly-formed HTML) as valid XML to allow these assertions to be made about the content of web pages too.

More information in the tutorial: http://xmlunit.sourceforge.net/userguide/html/index.html