Validating xml document in java

Question

Trying to do subject.
I'm trying to use xsd from file(schemasource = 1) and from clob (schemasource = 0). I have two xsd schemas common_types.xsd and migom.xsd. second includes first. The problem is that when I'm using common_types schema from file I get error
ORA-29532: Java call terminated by uncaught Java exception: oracle.xml.parser.v2.XMLParseException: An internal error condition occurred.
and when I validate xml against only first schema has being read from clob I get success, but when I add second xsd, i get the same error, which says nothing at all.
create or replace and compile java source named XmlTools AS
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.XMLReader;
import org.xml.sax.InputSource;
import oracle.sql.CLOB;
import java.io.IOException;
import org.xml.sax.SAXException;
import java.sql.SQLException;
import java.lang.IllegalArgumentException;
import oracle.xml.parser.v2.XMLParseException;
import javax.xml.parsers.ParserConfigurationException;
import java.io.*;
public class XmlValidator
static final String JAXP_SCHEMA_LANGUAGE = "http://java.sun.com/xml/jaxp/properties/schemaLanguage";
static final String W3C_XML_SCHEMA = "http://www.w3.org/2001/XMLSchema";
static final String JAXP_SCHEMA_SOURCE = "http://java.sun.com/xml/jaxp/properties/schemaSource";
public static void ValidateDocument(int schemasource, oracle.sql.CLOB schemadoc, oracle.sql.CLOB schemadoc1, oracle.sql.CLOB xmldoc) throws SAXException, IOException, SQLException, ParserConfigurationException, XMLParseException, IllegalArgumentException {
try
File myfile = new File(".//XML//common_types.xsd");
if (myfile.exists())
Serv.log("ValidateDocument", "file size" + Long.toString(myfile.length()));
/*else
Serv.log("ValidateDocument", "file doesn't exists" );
Serv.log("ValidateDocument", "1" );
SAXParserFactory factory = SAXParserFactory.newInstance();
factory.setValidating(true);
factory.setNamespaceAware(true);
Serv.log("ValidateDocument", "2" );
SAXParser saxParser = factory.newSAXParser();
saxParser.setProperty(JAXP_SCHEMA_LANGUAGE, W3C_XML_SCHEMA);
if (schemasource == 0)
InputSource schemaIs = new InputSource(schemadoc.getCharacterStream());
InputSource schemaIs1 = new InputSource(schemadoc1.getCharacterStream());
InputSource[] schemas = {schemaIs, schemaIs1};
//saxParser.setProperty(JAXP_SCHEMA_SOURCE, schemaIs);
saxParser.setProperty(JAXP_SCHEMA_SOURCE, schemas);
else
saxParser.setProperty(JAXP_SCHEMA_SOURCE, ".//XML//common_types.xsd");
XMLReader reader = saxParser.getXMLReader();
//Получаем входной XML документ
InputSource documentIs = new InputSource(xmldoc.getCharacterStream());
Serv.log("ValidateDocument", "3" );
//Запуск разбора
reader.parse(documentIs);
Serv.log("ValidateDocument", "4" );
documentIs = null;
/*catch (SAXException e)
Serv.log("ValidateDocument", "SAXException" );
Serv.log("ValidateDocument", "document is not valid because ");
Serv.log("ValidateDocument", e.getMessage());
throw(e);
catch (ParserConfigurationException e)
Serv.log("ValidateDocument", "ParserConfigurationException" );
throw(e);
catch (IOException e)
Serv.log("ValidateDocument", "IOException" );
throw(e);
catch (XMLParseException e)
Serv.log("ValidateDocument", "XMLParseException" );
Serv.log("ValidateDocument", e.getMessage());
StackTraceElement[] stack = e.getStackTrace();
for (int i = 0; i < stack.length; i++)
Serv.log("stacktrace element no " + Integer.toString(i), "toString: " + stack.toString());
Serv.log("stacktrace element no " + Integer.toString(i), "file name: " + stack[i].getFileName() + ", class name: " + stack[i].getClassName() + ", method name: " + stack[i].getMethodName() + ", line : " + stack[i].getLineNumber());
throw(e);
catch (IllegalArgumentException e)
Serv.log("ValidateDocument", "IllegalArgumentException" );
Serv.log("ValidateDocument", e.getMessage());
throw(e);
additional information got from java stacktrace:
file name: XMLError.java, class name: oracle.xml.parser.v2.XMLError, method name: flushErrors1, line : 320 file name: NonValidatingParser.java, class name: oracle.xml.parser.v2.NonValidatingParser, method name: parseDocument, line : 300 file name: XMLParser.java, class name: oracle.xml.parser.v2.XMLParser, method name: parse, line : 200 file name: XMLTOOLS, class name: XmlValidator, method name: ValidateDocument, line : 86
my oracle version is Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Prod But my aim is to make it work on all versions starting from 9

Answer 1

I found another examples of xml document validation in Java, but it seems to me that ORACLE's JVM doesn't include such class as SchemaFactory and class SAXParserFactory doesn't have method setSchema. Is it possible to update JVM installed in Oracle?
SAXParserFactory factory = SAXParserFactory.newInstance();
factory.setValidating(false);
factory.setNamespaceAware(true);
SchemaFactory schemaFactory =
SchemaFactory.newInstance("http://www.w3.org/2001/XMLSchema");
factory.setSchema(schemaFactory.newSchema(
new Source[] {new StreamSource("contacts.xsd")}));
SAXParser parser = factory.newSAXParser();
XMLReader reader = parser.getXMLReader();
reader.setErrorHandler(new SimpleErrorHandler());
reader.parse(new InputSource("document.xml"));