I have the follwoing XML document:
<!DOCTYPE root [<!ENTITY foo "bar">]>
<root>
<child>&foo;</child>
</root>
and I want to validate it against the following XSD schema:
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
<xs:element name="root">
<xs:complexType>
<xs:sequence>
<xs:element name="child" type="xs:string"/>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>
For this I'm using a small ANT script:
<project basedir="." name="schema-validation-test" default="test">
<target name="test">
<schemavalidate failonerror="true" file="src.xml" nonamespacefile="schema.xsd">
</schemavalidate>
</target>
</project>
Though the XML structure is valid against the XSD I get the errors:
[schemavalidate] ...\src.xml:2:7: Elementtyp "root" muss deklariert werden.
[schemavalidate] ...\src.xml:3:12: Elementtyp "child" muss deklariert werden.
(Original messages, translated it means: 'Element type "root" must be declared'
)
I think I know what happens: Xerces finds the DTD declaration and tries to validate the XML against it. I need to turn off the DTD validation (without turning off the full validation) or to specify that elements or attributes that do not have a declaration do not produce an error. I played around a lot with the Xerces features (https://xerces.apache.org/xerces-j/features.html), but didn't find a satisfying setup.
Thanks for any help or hint!
Version information:
UPDATE: found my Xerces version: Xerces-J 2.7.1 (for ant, execute: <java classname="com.sun.org.apache.xerces.internal.impl.Version"/>
)
Note: I'm using Ant here, but if you have a solution in Java, it may also be helpful.
I think you need to set the "schemaLanguage" property. Something like this:
<project basedir="." name="schema-validation-test" default="test">
<target name="test">
<schemavalidate file="src.xml" noNamespaceFile="schema.xsd" failonerror="true">
<property name="http://java.sun.com/xml/jaxp/properties/schemaLanguage" value="http://www.w3.org/2001/XMLSchema"/>
</schemavalidate>
</target>
</project>
Best Regards, Octavian