[XERCESJ-1456] Regular expression is incorrectly handled in pattern facet

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.10.0
• Fix Version/s: 2.11.0
• Component/s: XML Schema 1.0 Datatypes
• Environment: JDK 1.5.0
• Assignee: Khaled Noaman
• Reporter: Christian Schröder
• Created: 05/Jul/10 01:35
• Updated: 08/Jul/10 20:58
• Resolved: 08/Jul/10 20:58

Description

I have the following schema:

<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<xsd:element name="test" type="Test"/>
<xsd:simpleType name="Test">
<xsd:restriction base="xsd:string">
<xsd:pattern value="[0-9]

{0,3}([0-9]{3})*"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:schema>

And this xml file:

<?xml version="1.0" encoding="windows-1252"?>
<test>1010000</test>

I try to validate the file with the following test code:

DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
dbf.setNamespaceAware(true);
DocumentBuilder builder = dbf.newDocumentBuilder();
Document xsd = builder.parse(Main.class.getResource("/test.xsd").toString());

SchemaFactory sf = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
Schema schema = sf.newSchema(new DOMSource(xsd));
Validator validator = schema.newValidator();

Document test = builder.parse(Main.class.getResource("/test.xml").toString());
validator.validate(new DOMSource(test));

I get an org.xml.sax.SAXParseException: cvc-pattern-valid: Value '1010000' is not facet-valid with respect to pattern '[0-9]{0,3}

([0-9]

{3})*' for type 'Test'.

In my opinion, the given value should be valid for the given pattern. Even the following code prints "true":

RegularExpression re = new RegularExpression("[0-9]{0,3}([0-9]{3}

)*");
System.out.println(re.matches("1010000"));