XSD 1.1 Not Supported in JDK 13

XSD Tutorials - Herong's Tutorial Examples

∟XSD 1.1 Not Supported in JDK 13

This section provides a tutorial example to verify is the default JAXP implementation in the current JDK version supports XSD 1.1 or not. The answer is no for JDK 13.

One more question we have to answer before we leave this chapter about JAXP API as an XSD (XML Schema) processor is: Does the current version of JDK support XSD 1.1 specification?

The answer is no for JDK 13. We can prove this by trying to load this simple XSD 1.1 schema document, xsd11_datatype_test.xsd, with we used earlier in this chapter:

herong> type xsd11_datatype_test.xsd

< ?xml version="1.1"?>
< xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
< !-- xsd11_datatype_test.xsd
 - Copyright (c) 2013 HerongYang.com. All Rights Reserved.
-->
< xs:element name="XSD11_Datatype_Test">
  < xs:complexType>
    < xs:sequence>
      <xs:element name="XSD10Type" type="xs:string"
        maxOccurs="unbounded"/>
      < xs:element name="AnyAtomicType" type="xs:anyAtomicType"
        maxOccurs="unbounded"/>
      < xs:element name="DateTimeStamp" type="xs:dateTimeStamp"
        maxOccurs="unbounded"/>
      < xs:element name="DayTimeDuration" type="xs:dayTimeDuration"
        maxOccurs="unbounded"/>
      < xs:element name="YearMonthDuration" type="xs:yearMonthDuration"
        maxOccurs="unbounded"/>
    < /xs:sequence>
  < /xs:complexType>
< /xs:element>
< /xs:schema>


herong> java XsdSchemaLoader.java xsd11_datatype_test.xsd

Schema Language: http://www.w3.org/2001/XMLSchema
Factory Class: com.sun.org.apache.xerces.internal.jaxp.validation.XMLSchemaFactory

org.xml.sax.SAXParseException; systemId: file:/herong/xsd/xsd11_datatype_test.xsd;
  lineNumber: 12; columnNumber: 32; src-resolve.4.2: Error resolving component
  'xs:anyAtomicType'. It was detected that 'xs:anyAtomicType' is in namespace
  'http://www.w3.org/2001/XMLSchema', but components from this namespace are
  not referenceable from schema document 'file:/herong/xsd/xsd11_datatype_test.xsd'.
  If this is the incorrect namespace, perhaps the prefix of 'xs:anyAtomicType'
  needs to be changed. If this is the correct namespace, then an appropriate
  'import' tag should be added to 'file:/herong/xsd/xsd11_datatype_test.xsd'.

As you can see, the definition first child element loaded ok, because it uses xs:string, which is an XSD 1.0 datatype. The definition of the second child element failed to load, because it uses xs:anyAtomicType, which is XSD 1.1 datatype.

Also note that the error message is very confusing: "It was detected that 'xs:anyAtomicType' is in namespace 'http://www.w3.org/2001/XMLSchema', but components from this namespace are not referenceable from schema document...". It could be very simple as: "'xs:anyAtomicType' is undefined."