Re: [Ikvm-developers] java.lang.ClassNotFoundException for custom javaclasses

[Volker B. <VB...@in...>]

I think the setting of the CLASSPATH come to late. You can test this if you print System.getProperties(). A real solution will be an URLClassLoader.

Volker

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Gesendet: Freitag, 21. Januar 2011 08:32
An: ikv...@li...
Betreff: [Ikvm-developers] java.lang.ClassNotFoundException for custom javaclasses

Hi,

I'm trying to read a java object (Student) which has been serialized
and stored in a file "st.bin". All the IKVM dlls are in my path. I'm
using IKVM version 0.44.0.5 on Windows 7
The Student class is in the "st.jar" file.

The code to do that is as follows:

using System;
using System.Collections.Generic;
using System.Text;
using java.io;

namespace DotNetJavaInterop
{
   class Program
   {
       static void Main(string[] args)
       {
           System.Environment.SetEnvironmentVariable("CLASSPATH",".;./st.jar;");
           System.Console.WriteLine(System.Environment.GetEnvironmentVariable("CLASSPATH"));

           FileInputStream fis = new FileInputStream("st.bin");
           ObjectInputStream ois = new ObjectInputStream(fis);
           Object obj = ois.readObject();

           System.Console.WriteLine(obj.GetType().ToString());
       }
   }
}



Unhandled Exception: java.lang.ClassNotFoundException: Student
  at java.io.ObjectInputStream.readObject()
  at DotNetJavaInterop.Program.Main(String[] args) in C:\..\Visual
Studio 2010\Projects\DotNetJavaInterop\DotNetJavaInterop\Program.cs:line
16

This erro only occurs for custom java classes, not the existing java
classes like ArrayList, etc.
What is wrong here and how can I correct this?

-- 
Manish

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