Java and JavaScript in the Database

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