Schema Parser - Can not build Schema

Question

I keep getting the following exception error:
"Can not build schema '' located at 'http://localhost/cv_enterprise.xsd''"
This is the Code which throws the error :
Reader r = cvcontext.Request.getReader();
InputSource in_src = new InputSource(r);
try {
schemadoc = (XMLSchema)builder.build("c:/broadwing/xml/cv_enterprise.xsd");
}catch(Exception ept){writeError("error in builiding " + ept.getMessage());}
writeError("three");*/
DOMParser dp = new DOMParser();
dp.setValidationMode(false);
dp.setSchemaValidationMode(true);
dp.setPreserveWhitespace(true);
dp.parse(r);
But the following lines of code works perfect:
try{
File f =new File(filename);
FileReader r = new FileReader(f);
DOMParser dp = new DOMParser();
URL url = createURL (filename);
dp.setValidationMode(false);
dp.setSchemaValidationMode(true);
dp.setPreserveWhitespace(true);
dp.parse(url);
System.out.println("it is parsed");
}catch(Exception e){System.out.println("there is error"+e.getMessage());}
The only difference between two is the first one works under a servlet environment and the second is a standalone application. Both use the same xml and xsd documents. The servlet receives the xml via http post and the application takes the xml as commandline argument.
The xml document has the xsd reference as http url.
null

Answer 1

I keep getting the following exception error:
"Can not build schema '' located at 'http://localhost/cv_enterprise.xsd''"
This is the Code which throws the error :
Reader r = cvcontext.Request.getReader();
InputSource in_src = new InputSource(r);
try {
schemadoc = (XMLSchema)builder.build("c:/broadwing/xml/cv_enterprise.xsd");
}catch(Exception ept){writeError("error in builiding " + ept.getMessage());}
writeError("three");*/
DOMParser dp = new DOMParser();
dp.setValidationMode(false);
dp.setSchemaValidationMode(true);
dp.setPreserveWhitespace(true);
dp.parse(r);
But the following lines of code works perfect:
try{
File f =new File(filename);
FileReader r = new FileReader(f);
DOMParser dp = new DOMParser();
URL url = createURL (filename);
dp.setValidationMode(false);
dp.setSchemaValidationMode(true);
dp.setPreserveWhitespace(true);
dp.parse(url);
System.out.println("it is parsed");
}catch(Exception e){System.out.println("there is error"+e.getMessage());}
The only difference between two is the first one works under a servlet environment and the second is a standalone application. Both use the same xml and xsd documents. The servlet receives the xml via http post and the application takes the xml as commandline argument.
The xml document has the xsd reference as http url.
null