All-
I am trying to use JAXB with a schema and an XML file that are contained
within my Jar file. The code below works fine if the .xsd and .xml file are
in a directory that is included in the classpath, but fails if the files are
bundled in the Jar file. I've confirmed that the files do exist in the Jar
and that their contents are valid.
Does anyone know if there are any problems with JAXB reading schemas and XML
file from Jar files?
The error message and my code are below. Of particular note, is the path in
the error message. It looks like two file URLs concatenated together.
Thanks,
Joshua Smith
***begin error message***
Exception: org.xml.sax.SAXParseException: schema_reference.4: Failed to read
schema document
'file:/C:/JavaProjects2/demarshallingFromJar/file:/C:/JavaProjects2/demarshallingFromJar/demarshallingFromJar.jar!/outlet.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>.
org.xml.sax.SAXParseException: schema_reference.4: Failed to read schema
document
'file:/C:/JavaProjects2/demarshallingFromJar/file:/C:/JavaProjects2/demarshallingFromJar/demarshallingFromJar.jar!/outlet.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>.
at
com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(Unknown
Source)
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(Unknown
Source)
at
com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown
Source)
at
com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown
Source)
at
com.sun.org.apache.xerces.internal.impl.xs.traversers.XSDHandler.reportSchemaError(Unknown
Source)
at
com.sun.org.apache.xerces.internal.impl.xs.traversers.XSDHandler.getSchemaDocument(Unknown
Source)
at
com.sun.org.apache.xerces.internal.impl.xs.traversers.XSDHandler.parseSchema(Unknown
Source)
at
com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaLoader.loadSchema(Unknown
Source)
at
com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaLoader.loadGrammar(Unknown
Source)
at
com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaLoader.loadGrammar(Unknown
Source)
at
com.sun.org.apache.xerces.internal.jaxp.validation.XMLSchemaFactory.newSchema(Unknown
Source)
at javax.xml.validation.SchemaFactory.newSchema(Unknown Source)
at javax.xml.validation.SchemaFactory.newSchema (Unknown Source)
at ic.plugin.pulizzi.outletcontrol.server.Main.main(Main.java:30)
***end error message***
***begin source***
// unmarshall objects
String schemaFilename = Main.class.getResource("/outlet.xsd").getPath();
String xmlFilename = Main.class.getResource("/xmloutlet.xml").getPath();
List<OutletIF> currentConfiguration = null;
Object unmarshalledObject = null;
try {
JAXBContext context = JAXBContext.newInstance(
ic.plugin.pulizzi.outletcontrol.outlet.OutletInfo.class );
final SchemaFactory sf = SchemaFactory.newInstance(
"
http://www.w3.org/2001/XMLSchema");
final Schema schema = sf.newSchema(new File(schemaFilename));
Unmarshaller unmarshaller = context.createUnmarshaller();
unmarshaller.setSchema(schema);
unmarshalledObject = unmarshaller.unmarshal(new File(xmlFilename));
} catch (Exception ex) {
System.out.println ("Exception: " + ex);
ex.printStackTrace();
System.exit(-1);
}
// check if demarshalled object was null
if (unmarshalledObject == null) {
// null result
System.out.println ("Demarshalling failure. Object was null.");
System.exit(-1);
}
// all good, print out demarshalled objects
final OutletInfo outletInfo = (OutletInfo)unmarshalledObject;
currentConfiguration = outletInfo.getOutlets();
for (OutletIF outlet : currentConfiguration) {
System.out.println(outlet);
}
System.exit(0);
***end source***