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POWhy does this SAXParseException get thrown?
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  1. POWhy does this SAXParseException get thrown?
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    copied!<p>I am somewhat at a loss with this problem. I am writing a short section of code that should validate an XML file against the corresponding XSD Schema. To test, I passed it a valid XML file (validated by whatever Netbeans uses). To my chagrin I received the following error message:</p> <p><em>org.xml.sax.SAXParseException; cvc-elt.1: Cannot find the declaration of element 'map'.</em></p> <p>This is strange given that Netbeans found the declaration of element 'map' just fine. I know that relative file paths can sometimes be a problem, so I substituted an absolute path. Result: same problem.</p> <p>As a result I can only assume that the <code>SAXParser</code> doesn't use the <code>xsi:schemaLocation</code> attribute to determine the Schema file.</p> <p>Does anyone know why I am expriencing this behaviour?</p> <p>Here is an SSCCE:</p> <pre><code>import java.io.File; import java.io.FileInputStream; import java.io.IOException; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.transform.Source; import javax.xml.transform.dom.DOMSource; import javax.xml.transform.stream.StreamSource; import javax.xml.validation.Schema; import javax.xml.validation.SchemaFactory; import javax.xml.validation.Validator; import org.w3c.dom.Document; import org.xml.sax.SAXException; public class ValidatorTest { public static void main(String[] args) { DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); Document doc = null; try { DocumentBuilder db = dbf.newDocumentBuilder(); doc = db.parse(new FileInputStream(new File(args[0]))); } catch (Throwable ex) { ex.printStackTrace(); System.exit(1); } SchemaFactory sf = SchemaFactory.newInstance("http://www.w3.org/2001/XMLSchema"); Schema schema = null; try { schema = sf.newSchema(new StreamSource(new File(args[1]))); } catch (SAXException ex) { ex.printStackTrace(); System.exit(1); } Source source = new DOMSource(doc); Validator validator = schema.newValidator(); try { validator.validate(source); System.out.println("SUCESS!"); } catch (SAXException ex) { ex.printStackTrace(); System.out.println("FAIL!"); } catch (IOException ex) { ex.printStackTrace(); System.exit(1); } } } </code></pre> <p>My XML:</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;map id="testMap" name="Test Map" xmlns="zorkCloneMapTypes" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="zorkCloneMapTypes /home/max/NetBeanzWorkspace/ZorkClone/src/main/resources/maps/betterMaps.xsd"&gt; &lt;room id="testingGrounds" name="Testing Grounds" posX="0" posY="1"&gt; &lt;type&gt;basic&lt;/type&gt; &lt;description&gt;A dusty arena, enclosed in a circular, wooden fence. Clearly designed for practicing combat. There are red blood spatters in the sand.&lt;/description&gt; &lt;passageNorth&gt;true&lt;/passageNorth&gt; &lt;passageEast&gt;false&lt;/passageEast&gt; &lt;passageSouth&gt;false&lt;/passageSouth&gt; &lt;passageWest&gt;false&lt;/passageWest&gt; &lt;enemies&gt; &lt;enemy&gt; &lt;name&gt;Training Master&lt;/name&gt; &lt;type&gt;Basic&lt;/type&gt; &lt;description&gt;A Training Master. He will not let you pass until you defeat him in combat.&lt;/description&gt; &lt;level&gt;1&lt;/level&gt; &lt;/enemy&gt; &lt;/enemies&gt; &lt;containers&gt; &lt;container locked="false"&gt; &lt;name&gt;Equipment locker.&lt;/name&gt; &lt;description&gt;Equipment locker.&lt;/description&gt; &lt;level&gt;5&lt;/level&gt; &lt;/container&gt; &lt;container locked="false"&gt; &lt;name&gt;Equipment locker.&lt;/name&gt; &lt;description&gt;Equipment locker.&lt;/description&gt; &lt;level&gt;5&lt;/level&gt; &lt;/container&gt; &lt;/containers&gt; &lt;/room&gt; &lt;transferRoom id="start" name="Starting Map" posX="0" posY="0"&gt; &lt;type&gt;transfer&lt;/type&gt; &lt;description&gt;The starting room for the game.&lt;/description&gt; &lt;transferID&gt;testMap.testingGrounds&lt;/transferID&gt; &lt;passageNorth&gt;false&lt;/passageNorth&gt; &lt;passageEast&gt;false&lt;/passageEast&gt; &lt;passageSouth&gt;true&lt;/passageSouth&gt; &lt;passageWest&gt;false&lt;/passageWest&gt; &lt;enemies/&gt; &lt;containers/&gt; &lt;/transferRoom&gt; &lt;/map&gt; </code></pre> <p>And my XSD:</p> <pre><code> &lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="zorkCloneMapTypes" targetNamespace="zorkCloneMapTypes" elementFormDefault="qualified"&gt; &lt;xs:element name="map"&gt; &lt;xs:complexType&gt; &lt;xs:sequence&gt; &lt;xs:element minOccurs="0" maxOccurs="unbounded" ref="room"/&gt; &lt;xs:element minOccurs="1" maxOccurs="unbounded" ref="transferRoom"/&gt; &lt;/xs:sequence&gt; &lt;xs:attribute name="id" type="xs:ID" use="required"/&gt; &lt;xs:attribute name="name" type="xs:string" use="required"/&gt; &lt;/xs:complexType&gt; &lt;/xs:element&gt; &lt;xs:element name="transferRoom"&gt; &lt;xs:complexType&gt; &lt;xs:sequence&gt; &lt;xs:element ref="type"/&gt; &lt;xs:element ref="description"/&gt; &lt;xs:element ref="transferID"/&gt; &lt;xs:element ref="passageNorth"/&gt; &lt;xs:element ref="passageEast"/&gt; &lt;xs:element ref="passageSouth"/&gt; &lt;xs:element ref="passageWest"/&gt; &lt;xs:element minOccurs="0" maxOccurs="unbounded" ref="enemies"/&gt; &lt;xs:element minOccurs="0" maxOccurs="unbounded" ref="containers"/&gt; &lt;/xs:sequence&gt; &lt;xs:attribute name="name" use="required" type="xs:string"/&gt; &lt;xs:attribute name="id" use="required" type="xs:ID"/&gt; &lt;xs:attribute name="posX" use="required" type="xs:string"/&gt; &lt;xs:attribute name="posY" use="required" type="xs:string"/&gt; &lt;/xs:complexType&gt; &lt;/xs:element&gt; &lt;xs:element name="room"&gt; &lt;xs:complexType&gt; &lt;xs:sequence&gt; &lt;xs:element ref="type"/&gt; &lt;xs:element ref="description"/&gt; &lt;xs:element ref="passageNorth"/&gt; &lt;xs:element ref="passageEast"/&gt; &lt;xs:element ref="passageSouth"/&gt; &lt;xs:element ref="passageWest"/&gt; &lt;xs:element minOccurs="0" maxOccurs="unbounded" ref="enemies"/&gt; &lt;xs:element minOccurs="0" maxOccurs="unbounded" ref="containers"/&gt; &lt;/xs:sequence&gt; &lt;xs:attribute name="name" use="required" type="xs:string"/&gt; &lt;xs:attribute name="id" use="required" type="xs:ID"/&gt; &lt;xs:attribute name="posX" use="required" type="xs:string"/&gt; &lt;xs:attribute name="posY" use="required" type="xs:string"/&gt; &lt;/xs:complexType&gt; &lt;/xs:element&gt; &lt;xs:element name="containers"&gt; &lt;xs:complexType&gt; &lt;xs:sequence&gt; &lt;xs:element minOccurs="0" maxOccurs="unbounded" ref="container"/&gt; &lt;/xs:sequence&gt; &lt;/xs:complexType&gt; &lt;/xs:element&gt; &lt;xs:element name="enemies"&gt; &lt;xs:complexType&gt; &lt;xs:sequence&gt; &lt;xs:element minOccurs="0" maxOccurs="unbounded" ref="enemy"/&gt; &lt;/xs:sequence&gt; &lt;/xs:complexType&gt; &lt;/xs:element&gt; &lt;xs:element name="container"&gt; &lt;xs:complexType&gt; &lt;xs:sequence&gt; &lt;xs:element ref="name"/&gt; &lt;xs:element ref="description"/&gt; &lt;xs:element ref="level"/&gt; &lt;/xs:sequence&gt; &lt;xs:attribute name="locked" default="false" type="xs:boolean"/&gt; &lt;/xs:complexType&gt; &lt;/xs:element&gt; &lt;xs:element name="enemy"&gt; &lt;xs:complexType&gt; &lt;xs:sequence&gt; &lt;xs:element ref="name"/&gt; &lt;xs:element ref="type"/&gt; &lt;xs:element ref="description"/&gt; &lt;xs:element ref="level"/&gt; &lt;/xs:sequence&gt; &lt;/xs:complexType&gt; &lt;/xs:element&gt; &lt;xs:element name="name" type="xs:string"/&gt; &lt;xs:element name="type" type="xs:string"/&gt; &lt;xs:element name="description" type="xs:string"/&gt; &lt;xs:element name="transferID" type="xs:string"/&gt; &lt;xs:element name="passageNorth" type="xs:boolean"/&gt; &lt;xs:element name="passageEast" type="xs:boolean"/&gt; &lt;xs:element name="passageSouth" type="xs:boolean"/&gt; &lt;xs:element name="passageWest" type="xs:boolean"/&gt; &lt;xs:element name="level" type="xs:int"/&gt; &lt;/xs:schema&gt; </code></pre>
 

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