How to solve the IllegalArgumentException

[Former Member]

Dear all,

I am trying develop a java program by following the SAP NetWaver Library.

http://help.sap.com/saphelp_nw04s/helpdata/en/c4/e1343e8c7f6329e10000000a114084/frameset.htm

But it always catches the IllegalArgumentException.Please advise me how to solve this problem.

The developing code:

try {

DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();

docBuilderFactory.setNamespaceAware(true);

docBuilderFactory.setValidating(true);

docBuilderFactory.setAttribute("http://java.sun.com/xml/jaxp/properties/schemaLanguage", "http://www.w3.org/2001/XMLSchema");

docBuilderFactory.setAttribute("http://java.sun.com/xml/jaxp/properties/schemaSource",mySchemaInputStream);

DocumentBuilder docBuilder = docBuilderFactory.newDocumentBuilder();

Document doc = docBuilder.parse(myFileInputStream);

} catch(DOMException domException) {

domException.printStackTrace();

} catch(IllegalArgumentException illegalArgumentException){

illegalArgumentException.printStackTrace();

}

Thanks & Regards,

Red

[Former Member · Accepted solution]

Hi Grace,

Could you check your exception trace and identify where exactly is the exception generated in your code ?

If it occurs at Document doc = docBuilder.parse(myFileInputStream); line, then the argument myFileInputStream should be one of the following class type File, InputSource, InputSteam or String. If you are using FileInputStrea, then convert it to appropriate class for use.

Please refer to the following [documentation|http://java.sun.com/j2se/1.4.2/docs/api/javax/xml/parsers/DocumentBuilder.html] for futher help.

Regards,

Alka.

[Former Member · Accepted solution]

Dear Alka,

The IllegalArgumentException was throw by the method "docBuilderFactory.setAttribute".

When I set the comment marks before the two lines in this code as the following code,

it can paser the XML to DOM successfully without any exception.

//docBuilderFactory.setAttribute("http://java.sun.com/xml/jaxp/properties/schemaLanguage", "http://www.w3.org/2001/XMLSchema");

//docBuilderFactory.setAttribute("http://java.sun.com/xml/jaxp/properties/schemaSource",mySchemaInputStream);

For the propose of the schema validation I have to assign the schema to implement the validation.

But it fails. Please advise me.

Thanks & Regards,

Red

Edited by: Grace Chien on Nov 25, 2008 10:25 AM

[Former Member]

Hi Grace,

The value for the http://java.sun.com/xml/jaxp/properties/schemaSource property of the SAX Parser can be of File ot InputSource Class type. From your code snippet it appears to be FileInputStream type.

Try assigning the value as shown [here|http://www.xml.com/pub/a/2005/07/06/jaxp.html].

Regards,

Alka.

[Former Member]

Dear Alka,

Thank you for help.

I try to implement the schema vaildation by DOM parsing but not SAX parsing.

I have tried many ways to set the correct attribute to DocumentBuilderFactory.

But it still can't work. It always catches the IllegalArgumentException.

Please provide me more information about the schema vaildation by DOM parsing.

Thanks & Regards,

Red

[Former Member]

Dear all,

The reason why it always catches the IllegalArgumentException is that XI server don't allowed

the programe to access the external website. Thank you for help.

Thanks & Regards,

Red