Failed to read Schema

[Prabhat . dutt . Tripathi]

I am new to xerces-J(version 2.x). I am experiencing problem with
specifying schema location(without namespace):

Here is the file sxcerpts:

sampleSchema.xsd:
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema";>

<!-- and so on -->



Sample.xml:

<?xml version = "1.0" encoding = "UTF-8"?>

  <PropertySheet xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance";
xsi:noNamespaceSchemaLocation = "schema/sampleSchema.xsd" Size = "SMALL">

<!-- and so on --->

Program Excerpts:
            XMLReader reader=
XMLReaderFactory.createXMLReader("org.apache.xerces.parsers.SAXParser");

            //todo: Register Content Handlers

            //todo: Register error Handler

            //Parse
            InputSource inputSource = new InputSource("xml/Sample.xml");
            //inputSource.setSystemID(xmlURI);

            //added
            reader.setFeature("http://xml.org/sax/features/validation";,
                                              true);

reader.setFeature("http://apache.org/xml/features/validation/schema";,
                                    true);
            reader.setFeature("http://xml.org/sax/features/namespaces";,
                                              true);

reader.setFeature("http://xml.org/sax/features/namespace-prefixes";,
                                    false);

reader.setFeature("http://apache.org/xml/features/validation/dynamic";,
                                    true);


            reader.parse(inputSource);

//and so on....

Running the program gives following error:

schema_reference.4: Failed to read schema document
'schema/PropertySheet.xsd', because 1) could not find the document; 2) the
document could not be read; 3) the root element of the document is not
<xsd:schema>.

The directory structure is as below:
<project>/xml/Sample.xml
<project>/schema/sampleSchema.xsd
<project>/SAxParser.java

I have put <project> directory (and subdirectory) in a jar and specified
jar in the classpath.
Please note that if I move Sample.xml to <project> directory (from
<project>/xml), the parser *does not* gives any error.

I would appreciate if someone please help me how to specify schema location
independent of xml file location. The schema should be located in the
classpath instead.

TIA,
Prabhat



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