Hello, How would I know which is the default parser implementation a particular JDK is using. I tried printing the javax.xml.parsers.DocumenBuilderFactory and javax.xml.parsers.SAXParserFactory. Also I tried printing all the System properties to find out if any such property is present. But there was none. Additionally API mentions it might check to see jaxp.properties in lib directory , which also is not present in the installation. Am I missing something here?