SAXParseException - 'xsi:noNamespaceSchemaLocation' Not Allowed

This section provides a tutorial example showing the SAXParseException that says Attribute 'xsi:noNamespaceSchemaLocation' is not allowed when applying XSD schema validation on an XML DOM object.

In previous tutorials, we tested XML validation using a javax.xml.validation.Validator object created from a loaded XSD schema file. The Validator object is then applied to a XML DOM object or a SAXSource object that represents an XML file.

In those tests, the XML file has no reference to XSD schema file. Now, let's do some tests on an XML file that contains a reference to the XSD file using the 'xsi:noNamespaceSchemaLocation' attribute. Here is an example XML file, dictionary_invalid_xsd.xml:

<?xml version="1.0"?>
<dictionary xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
 xsi:noNamespaceSchemaLocation="dictionary.xsd">
<!-- dictionary_invalid_xsd.xml
 - Copyright (c) 2014, HerongYang.com, All Rights Reserved.
-->
 <word acronym="yes">
  <name>XML</name>
  <definition reference="Herong's Notes">eXtensible Markup 
Language.</definition>
  <update date="23-Dec-2014"/>
 </word>
 <word symbol="true">
  <name><</name>
  <definition>Mathematical symbol representing the "less than" logical 
operation, like: 1<2.</definition>
  <definition>Reserved symbol in XML representing the beginning of 
tags, like: <![CDATA[<p>Hello world!</p>]]>
  </definition>
  <update editor="Herong Yang"/>
 </word>
 <word symbol="no" acronym="false">
  <name>extensible</name>
  <definition>Capable of being extended.</definition>
 </word>
</dictionary>

Here is the XSD file, dictionary.xsd:

<?xml version="1.0"?>
<!-- dictionary.xsd
 - Copyright (c) 2014, HerongYang.com, All Rights Reserved.
-->
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
 <xsd:element name="dictionary" type="dictionaryType"/>
 <xsd:complexType name="dictionaryType">
  <xsd:sequence>
   <xsd:element name="word" type="wordType" maxOccurs="unbounded"/>
  </xsd:sequence>
 </xsd:complexType>
 <xsd:complexType name="wordType">
  <xsd:sequence>
   <xsd:element name="name" type="xsd:string"/>
   <xsd:element name="definition" type="definitionType" 
    maxOccurs="unbounded"/>
   <xsd:element name="update" type="updateType" minOccurs="0"/>
  </xsd:sequence>
  <xsd:attribute name="acronym" type="xsd:boolean" use="optional"/>
  <xsd:attribute name="symbol" type="xsd:boolean" use="optional"/>
 </xsd:complexType>
 <xsd:complexType name="definitionType" mixed="true">
  <xsd:attribute name="reference" type="xsd:string"/>
 </xsd:complexType>
 <xsd:complexType name="updateType">
  <xsd:attribute name="date">
   <xsd:simpleType>
    <xsd:restriction base="xsd:string">
     <xsd:pattern value="\p{Nd}{4}-\p{Nd}{2}-\p{Nd}{2}"/>
    </xsd:restriction>
   </xsd:simpleType>
  </xsd:attribute>
 </xsd:complexType>
</xsd:schema>

Run XsdSchemaSaxValidatorWithErrorHandler.java with JDK 1.8:

C:\herong\xml>java XsdSchemaSaxValidatorWithErrorHandler 
   dictionary.xsd dictionary_invalid_xsd.xml

Validator Class: 
   com.sun.org.apache.xerces.internal.jaxp.validation.ValidatorImpl

org.xml.sax.SAXParseException; lineNumber: 7; columnNumber: 22; 
cvc-datatype-valid.1.2.1: 'yes' is not a valid value for 'boolean'.

org.xml.sax.SAXParseException; lineNumber: 7; columnNumber: 22; 
cvc-attribute.3: The value 'yes' of attribute 'acronym' on element 
'word' is not valid with respect to its type, 'boolean'.

org.xml.sax.SAXParseException; lineNumber: 11; columnNumber: 31; 
cvc-pattern-valid: Value '23-Dec-2014' is not facet-valid with respect
to pattern '\p{Nd}{4}-\p{Nd}{2}-\p{Nd}{2}' for type 
'#AnonType_dateupdateType'.

org.xml.sax.SAXParseException; lineNumber: 11; columnNumber: 31; 
cvc-attribute.3: The value '23-Dec-2014' of attribute 'date' on 
element 'update' is not valid with respect to its type, 'null'.

org.xml.sax.SAXParseException; lineNumber: 20; columnNumber: 33; 
cvc-complex-type.3.2.2: Attribute 'editor' is not allowed to appear in
element 'update'.

org.xml.sax.SAXParseException; lineNumber: 22; columnNumber: 36; 
cvc-datatype-valid.1.2.1: 'no' is not a valid value for 'boolean'.

org.xml.sax.SAXParseException; lineNumber: 22; columnNumber: 36; 
cvc-attribute.3: The value 'no' of attribute 'symbol' on element 
'word' is not valid with respect to its type, 'boolean'.

Failed with errors: 7

XsdSchemaSaxValidatorWithErrorHandler.java works. But XsdSchemaDomValidatorWithErrorHandler.java reports an extra error:

C:\herong\xml>java XsdSchemaDomValidatorWithErrorHandler 
   dictionary.xsd dictionary_invalid_xsd.xml

Validator Class: 
   com.sun.org.apache.xerces.internal.jaxp.validation.ValidatorImpl
   
org.xml.sax.SAXParseException; cvc-complex-type.3.2.2: Attribute 
'xsi:noNamespaceSchemaLocation' is not allowed to appear in element 
'dictionary'.

org.xml.sax.SAXParseException; cvc-datatype-valid.1.2.1: 'yes' is not
a valid value for 'boolean'.

org.xml.sax.SAXParseException; cvc-attribute.3: The value 'yes' of 
attribute 'acronym' on element 'word' is not valid with respect to its
type, 'boolean'.

org.xml.sax.SAXParseException; cvc-pattern-valid: Value '23-Dec-2014' 
is not facet-valid with respect to pattern 
'\p{Nd}{4}-\p{Nd}{2}-\p{Nd}{2}' for type '#AnonType_dateupdateType'.

org.xml.sax.SAXParseException; cvc-attribute.3: The value 
'23-Dec-2014' of attribute 'date' on element 'update' is not valid 
with respect to its type, 'null'.

org.xml.sax.SAXParseException; cvc-complex-type.3.2.2: Attribute 
'editor' is not allowed to appear in element 'update'.

org.xml.sax.SAXParseException; cvc-datatype-valid.1.2.1: 'no' is not
a valid value for 'boolean'.

org.xml.sax.SAXParseException; cvc-attribute.3: The value 'no' of 
attribute 'symbol' on element 'word' is not valid with respect to its 
type, 'boolean'.

Failed with errors: 8

The first error tells that 'xsi:noNamespaceSchemaLocation' is not allowed. I have no idea why.

Last update: 2014.

Table of Contents

 About This Book

 Introduction of XML (eXtensible Markup Language)

 XML File Syntax

 XML File Browsers

 DOM (Document Object Model) Programming Interface

 SAX (Simple API for XML) Programming Interface

 DTD (Document Type Definition) Introduction

 Syntaxes of DTD Statements

 Validating an XML Document against the Specified DTD Document Type

 XSD (XML Schema Definition) Introduction

 Syntaxes of XSD Statements

Validating XML Documents Against Specified XML Schemas

 XSD Schema Validator on XML DOM Object

 XSD Schema Validator on XML DOM Object - Errors

 XSD Schema Validator on XML SAX Object

SAXParseException - 'xsi:noNamespaceSchemaLocation' Not Allowed

 Validating XML Linked with XSD using XMLReader

 XSL (Extensible Stylesheet Language) Introduction

 XSLT (XSL Transformations) Introduction

 Java Implementation of XSLT

 XPath (XML Path) Language

 XSLT Elements as Programming Statements

 Control and Generate XML Element in the Result

 XML Notepad - XML Editor

 XML Tools Plugin for Notepad++

 XML 1.1 Changes and Parsing Examples

 Outdated Tutorials

 References

 PDF Printing Version