de will
 validate documents as they are parsed. By default the value of this
 is set to <code>false</code>.
 
 <p>
 Note that "the validation" here means
 <a href="http://www.w3.org/TR/REC-xml#proc-types">a validating
 parser</a> as defined in the XML recommendation.
 In other words, it essentially just controls the DTD validation.
 (except the legacy two properties defined in JAXP 1.2.
 See <a href="#validationCompatibility">here</a> for more details.)
 </p>
 
 <p>
 To use modern schema languages such as W