In my editor, the Marshaller.java class (which I downloaded from the CVS link) line 672 is:
name = classDesc.getXMLName(); ?????????? > -----Original Message----- > From: Keith Visco [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, April 23, 2002 12:22 PM > To: [EMAIL PROTECTED] > Subject: Re: [castor-dev] How do I marshall a collection of my class > objects? > > > > Hi Mark, > > I'll take a look into it. However, your stacktrace cannot come from the > CVS version of Castor...line 672 of Marshaller in the CVS cannot > possibly throw an exception: > > 672: if (object == null) > > In any case, I'll try out your example and see what I get. > > Thanks, > > --Keith > > "Mark A. Sellers" wrote: > > > > I tried using the CVS version and still get an NPE exception. > Here's what > > I'm doing: > > > > package rm.castor; > > > > import java.util.Date; > > import java.util.*; > > import java.sql.Timestamp; > > import java.awt.*; > > import java.awt.event.*; > > import java.io.*; > > import org.exolab.castor.xml.*; > > import TestObject; > > import org.xml.sax.ContentHandler; > > import org.apache.xml.serialize.*; > > > > class Castor extends Frame { > > > > public Castor() { > > addWindowListener(new WindowAdapter() { > > public void windowClosing(WindowEvent e) { > > dispose(); > > System.exit(0); > > } > > }); > > } > > > > public static void main(String args[]) { > > System.out.println("Starting Castor..."); > > Castor mainFrame = new Castor(); > > mainFrame.setSize(400, 400); > > mainFrame.setTitle("Castor"); > > mainFrame.setVisible(true); > > > > TestObject[] to = new TestObject[2]; > > to[0] = new TestObject(); > > to[0].setDateOfBirth(new java.util.Date("10/1/2001")); > > to[0].setName("Mark"); > > to[1] = new TestObject(); > > to[1].setDateOfBirth(new java.util.Date("12/21/1956")); > > to[1].setName("Sandy"); > > > > try { > > FileWriter writer = new FileWriter("C:\\Castor\\cc.xml"); > > Marshaller mm = new Marshaller(writer); > > mm.setNamespaceMapping("-//EXOLAB/Castor Object Mapping > Schema Version > > 1.0//EN","http://castor.exolab.org/mapping.xsd";); > > mm.setMarshalAsDocument(true); > > mm.setValidation(false); > > mm.setNSPrefixAtRoot(true); > > > > mm.marshal(to, writer); > > > > System.err.println("finished marshalling..."); > > > > } catch (java.io.IOException ioe) { > > System.err.println(ioe.toString()); > > } catch ( org.exolab.castor.xml.MarshalException me ) { > > System.err.println(me.toString()); > > } catch ( org.exolab.castor.xml.ValidationException ve ) { > > System.err.println(ve.toString()); > > } > > } > > } > > > > Class TestObject: > > > > import java.util.Date; > > public class TestObject implements java.io.Serializable { > > private String name = null; > > private Date dob = null; > > > > public TestObject() { > > super(); > > } > > > > public TestObject(String name) { > > this.name = name; > > } > > > > public Date getDateOfBirth() { > > return dob; > > } > > > > public String getName() { > > return name; > > } > > > > public void setDateOfBirth(Date dob) { > > this.dob = dob; > > } > > > > public void setName(String name) { > > this.name = name; > > } > > } > > > > Exception in thread "main" java.lang.NullPointerException > > at org.exolab.castor.xml.Marshaller.marshal(Marshaller.java:672) > > at org.exolab.castor.xml.Marshaller.marshal(Marshaller.java:540) > > at org.exolab.castor.xml.Marshaller.marshal(Marshaller.java:460) > > at rm.castor.Castor.main(Castor.java:160) > > > > Thanks, Mark Sellers > > > > ----------------------------------------------------------- > > If you wish to unsubscribe from this mailing, send mail to > > [EMAIL PROTECTED] with a subject of: > > unsubscribe castor-dev > > ----------------------------------------------------------- > If you wish to unsubscribe from this mailing, send mail to > [EMAIL PROTECTED] with a subject of: > unsubscribe castor-dev > ----------------------------------------------------------- If you wish to unsubscribe from this mailing, send mail to [EMAIL PROTECTED] with a subject of: unsubscribe castor-dev
