Looks like your call to getResource() returns null
Werner
Ajay Samant wrote:
> Hi
>
> I was trying a sample program using castor. I am getting error when I
> create Unmarshaller object.
>
>
> try {
>
> Mapping mapping = new Mapping();
>
> InputStream ist =
> ClassLoader.getSystemClassLoader().getResourceAsStream("mapping2.xml");
>
> // 1. Load the mapping information from the file
>
> InputSource is = new InputSource(ist);
>
>
>
> mapping.loadMapping(is);
>
> // 2. Unmarshal the data
>
> Unmarshaller unmar = new Unmarshaller(mapping);
>
>
>
> } catch (Exception e) {
>
> System.out.println(e);
>
> e.printStackTrace();
>
> return;
>
> }
>
> The mapping file is shown at the end of email.
>
> I get
>
> org.exolab.castor.mapping.MappingException: Nested error: null
>
> null
>
> at
> org.exolab.castor.xml.Unmarshaller.unmarshal(Unmarshaller.java:735)
>
> at
> org.castor.mapping.MappingUnmarshaller.loadMappingInternal(MappingUnmarshaller.java:215)
>
> at
> org.castor.mapping.MappingUnmarshaller.getMappingLoader(MappingUnmarshaller.java:124)
>
> at
> org.castor.mapping.MappingUnmarshaller.getMappingLoader(MappingUnmarshaller.java:99)
>
> at
> org.exolab.castor.xml.Unmarshaller.setMapping(Unmarshaller.java:501)
>
> at org.exolab.castor.xml.Unmarshaller.<init>(Unmarshaller.java:254)
>
> at testwebservice.TestCastor.main(TestCastor.java:33)
>
> Caused by: java.net.MalformedURLException
>
> at java.net.URL.<init>(URL.java(Compiled Code))
>
> at java.net.URL.<init>(URL.java:462)
>
> at java.net.URL.<init>(URL.java:411)
>
> at
> org.apache.xerces.impl.XMLEntityManager.setupCurrentEntity(Unknown Source)
>
> at
> org.apache.xerces.impl.XMLVersionDetector.determineDocVersion(Unknown
> Source)
>
> at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
> Source)
>
> at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
> Source)
>
> at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
>
> at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
>
> at
> org.exolab.castor.xml.Unmarshaller.unmarshal(Unmarshaller.java:726)
>
> ... 6 more
>
> Mapping File
>
> Its a simple mapping file with 2 classes.
>
> <?xml version="1.0"?>
>
> <!DOCTYPE mapping PUBLIC "-//EXOLAB/Castor Mapping DTD Version 1.0//EN"
>
> "http://castor.org/mapping.dtd";>
>
> <mapping>
>
> <class name="testwebservice.TestParent">
>
> <map-to xml="TestParent"/>
>
>
>
> <field name="rowCount">
>
> <bind-xml name="COUNT" node="attribute"/>
>
> </field>
>
>
>
>
>
> <field name="name"
>
> type="java.lang.String">
>
> <bind-xml name="Name"/>
>
> </field>
>
>
>
> <field name="childlist"
>
> type="testwebservice.TestChild"
>
> collection="array">
>
> <bind-xml name="TestChild"/>
>
> </field>
>
> </class>
>
>
>
> <class name="testwebservice.TestChild">
>
>
>
> <field name="casenum"
>
> type="java.lang.String">
>
> <bind-xml name="casenum"/>
>
> </field>
>
>
>
> <field name="mrn"
>
> type="java.lang.String">
>
> <bind-xml name="mrn"/>
>
> </field>
>
> </class>
>
> </mapping>
>
>
---------------------------------------------------------------------
To unsubscribe from this list please visit:
http://xircles.codehaus.org/manage_email
