Plan 9 from Bell Labs’s /usr/web/sources/contrib/fernan/nhc98/src/libraries/HaXml/tests/xml-conformance/ibm/invalid/P60/out/ibm60i01.xml
<Java> <one chapter="Introduction"></one> <two></two> Negative test for Required Attribute. Some occurrence of an element with an attribute of #REQUIRED default declaration does not give the value of those attribute </Java>
