Java.lang.NoSuchMethodError: oracle.xml.parser.schema.XSDBuilder.build

Question

The following code works fine with JDeveloper 10.1.2 with the xmlparserv2.jar file provided with JDeveloper.
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XSDBuilder schemaBuilder = new XSDBuilder();
URL xsdURL = new URL(schemaUrl);
XMLSchema xmlschema = (XMLSchema) schemaBuilder.build(xsdURL);
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However when I try to put this in Oracle Application Server 10.1.2.0.2, I get the following error:
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java.lang.NoSuchMethodError: oracle.xml.parser.schema.XSDBuilder.build
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It seems like the oracle version is different in app server 10.1.2.0.2 that that of JDeveloper 10.1.2.
When we rename the parser, the application works BUT the Oracle Enterprise Manager does not work properly as it depends on the latest version of the parser.
Please help.
Thanks,
Madhav

Answer 1

I am able to reproduce this problem. I have a jar file MyLib.jar which contains a class MyXmlUtils with a method called validate. This JAR file was created in JDeveloper 9.0.5.2.
Now I create a Test class in JDeveloper 10.1.2 and use the method in the JAR file and it crashes in build method. The error says "NoSuchMethod".
However if I import MyXmlUtils class in to the Test project, everything works fine.
What is going on here?
// MyLib.jar (Created in JDeveloper 9.0.5.2)
public class MyXmlUtils
public static void validate(String xml, String schemaUrl) throws Exception
XSDBuilder schemaBuilder = new XSDBuilder();
URL xsdURL = new URL(schemaUrl);
XMLSchema xmlschema = (XMLSchema) schemaBuilder.build(xsdURL);
dp.setValidationMode(XMLParser.SCHEMA_VALIDATION);
dp.setXMLSchema(xmlschema);
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// Test project created in JDeveloper 10.1.2
import MyXmlUtils;
public class Test
public static void main(String[] args)
Test t = new Test();
try
String xml = "<Person><Name>John</Name></Person>";
String xsd = "file:\\c:\\Person.xsd";
MyXmlUtils.validate(xml, xsd);
catch (Exception e)
System.out.println(e.getMessage());
System.exit(1);
Thanks,
Madhav