Re: [Ikvm-developers] save Dom object as an xml file

[Jeroen F. <je...@su...>]

Hi,

There are two main causes of NoClassDefFoundError:

1) When you compiled your code with ikvmc it gave a warning about a missing class. When this happens, ikvmc will insert code to throw a NoClassDefFoundError when that code path is executed.

2) A class initializer threw an exception (ExceptionInInitializerError) and you tried to access the class again.

It would be helpful if you printed the full stack trace like this:

                 catch (Exception e)
                 {
                     java.lang.Throwable.instancehelper_printStackTrace(ikvm.runtime.Util.mapException(x));
                 }

If you're using C# 3.0 you can use the printStackTrace extension method:

using ikvm.extensions;

...

catch (System.Exception e)
{
  e.printStackTrace();
}

Regards,
Jeroen

> -----Original Message-----
> From: Jyothi Koppisetti [mailto:jy...@di...]
> Sent: Saturday, December 06, 2008 09:59
> To: ikv...@li...
> Subject: [Ikvm-developers] save Dom object as an xml file
>
>
>
> Hi,
>
> I am using dll files of jar  files to Communicating with JMS Q in  Dot
> net. I am using version ikvmbin-0.36.0.10-20080311A  which was sent by
> Jeroen Frijters [je...@su...] (in this Version  solved the issue
> related to multiple threads using JMS ) I tried to save Dom object in
> an XML file using  javax.xml.Transform namspace.  It is throwing an
> exception. I m getting exception type: java.lang.NoClassDefFoundError.
> Message:org.apache.xml.serializer.OutputPropertiesFactory.
>  Please help me.
>
>  Sequence of call stack is :
>
>
> SportsBetting.exe!SportsBetting.JbossQ.printDocument(org.w3c.dom.Docume
> nt document = {[#document: null]}, string path = "D:/sigonOn.xml") Line
> 445               C#
>
> SportsBetting.exe!SportsBetting.CommOSS.SendMessageToCP(ref
> org.w3c.dom.Document _doc = {[#document: null]}, string _stCommMsg =
> "SignOn Request", long timeOut = 10000, int formID = 1, int
> _MessageCode = 1) Line 202 + 0x10 bytes          C#
>
> SportsBetting.exe!SportsBetting.CommOSS.SignOnToOSS(string operatorId =
> "8001", string password = "1121") Line 73 + 0x1f bytes        C#
>
> SportsBetting.exe!SportsBetting.Login.btnLogin_Click(object sender =
> {Text = "Sing In"}, System.EventArgs e = {X = 38 Y = 13 Button = Left})
> Line 31 + 0x37 bytes      C#
>                 [External Code]
>                 SportsBetting.exe!SportsBetting.Program.Main() Line 17
> + 0x1a bytes   C#
>                 [External Code]
>
> Method to save dom object as an xml file:
>
>
> public static void printDocument(Document document, String path)
>         {
>             try {
>                     // Prepare the DOM document for writing
>                     Source source = new DOMSource(document);
>                     Result result = null;
>                     // Prepare the output file
>                     try
>                     {
>                         FileOutputStream fout = new
> FileOutputStream(path);
>                         result = new StreamResult(fout);
>                     }
>                     catch (java.io.FileNotFoundException ex)
>                     {
>                         ex.printStackTrace();
>                     }
>
>                     // Write the DOM document to the file
>   Transformer xformer =
> TransformerFactory.newInstance().newTransformer();         //Here I m
> getting exception type: java.lang.NoClassDefFoundError.
> Message:org.apache.xml.serializer.OutputPropertiesFactory
>                     xformer.transform(source, result);
>                 }
>                 catch (TransformerConfigurationException e)
>                 {
>                     e.printStackTrace();
>                 }
>                 catch (TransformerException e)
>                 {
>                     e.printStackTrace();
>                 }
>                 catch (Exception e)
>                 {
>                     System.Console.WriteLine(e.Message.ToString());
>                 }
>       }
>
>
> Regards,
> Jyothi K.