FULL PRODUCT VERSION :
java version "1.5.0_05"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_05-b05)
Java HotSpot(TM) Client VM (build 1.5.0_05-b05, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows XP [Version 5.1.2600]
Microsoft Windows 2000 [Version 5.00.2195]

A DESCRIPTION OF THE PROBLEM :
Cannot load xml file resources from signed jar file (defined into the jnlp file), when the execution context includes a class loaded by a secondary classloader.

I have only experienced this problem with the JNLPClassLoader. I first ran into the problem with a custom classloader, but I can recreate the problem with the URLClassLoader. The problem does not occur when the app is run without webstart.

I can send a sample app which dupilcates the problem.


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
PIECES OF TEST:
test.jar
  - defined in jnlp
  - contains JarCode.class

resouce.jar
  - defined in jnlp
  - contains ApplicationAnchor.class, Load_Before.xml, Load_After.xml

JarCode.java
  - downloaded in test.jar
  - contains the main method,
  - action
    - loads Load_Before.xml file from resource.jar
    - loads DynCode.class from http web server using URLClassLoader
    - loads Load_After.xml file from resource.jar

DynCode.java
  - downloaded from http web server using URLClassLoader
  - action - loads Load_Before.xml file from resource.jar


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
RESULTS when run from command line:

application/Load_Before.xml was loaded successfully
constuctor URLClassLoader and load class
********************* start DynCode constructor *********************
**
** anchor class name application.ApplicationAnchor
** classloader class name sun.misc.Launcher$AppClassLoader
** application/Load_Before.xml was loaded successfully
**
********************** end DynCode constructor **********************
application/Load_After.xml was loaded successfully


ACTUAL -
RESULTS when run from webstart:

Java Web Start 1.4.2_03 Console, started Wed Jun 23 16:39:24 EDT 2004
Java 2 Runtime Environment: Version 1.4.2_03 by Sun Microsystems Inc.
Logging to file: c:\ntm\log.txt
application/Load_Before.xml was loaded successfully
constuctor URLClassLoader and load class
********************* start DynCode constructor *********************
**
** anchor class name application.ApplicationAnchor
** classloader class name com.sun.jnlp.JNLPClassLoader
** application/Load_Before.xml was not loaded
**
********************** end DynCode constructor **********************
application/Load_After.xml was loaded successfully


REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
JARCODE.JAVA

package net.jenzabar.test;

import java.io.InputStream;
import java.net.URLClassLoader;
import java.net.URL;



/**
 * JarCode is loaded by the JNLPClassLoader. JarCode is loaded from the
 * test.jar file, which in defined in the jnlp file.
 *
 */
public class JarCode {

    static final String RESOURCE_NAME = "application/Load_Before.xml";
    static final String RESOURCE_NAME2 = "application/Load_After.xml";

    private void loadInputStream(String fileName$) throws Exception {
        
        try {
            Class anchorClass = application.ApplicationAnchor.class;
            ClassLoader classLoader = anchorClass.getClassLoader();
            InputStream inputStream = classLoader.getResourceAsStream(fileName$);
            
            System.out.println(fileName$ + (inputStream == null ? " was not loaded" : " was loaded successfully"));

            
        } catch (Exception e) {
            System.out.println("Error while trying to open xml file at: " + fileName$);
            e.printStackTrace();

        }
        
    }


    public JarCode() {
        
        try {
            loadInputStream(RESOURCE_NAME);
            
            System.out.println("constuctor URLClassLoader and load class");
            
            URL[] urls = new URL[] {new URL("http://10.20.10.67:8085/")};
            URLClassLoader urlClassLoader = new URLClassLoader(urls, this.getClass().getClassLoader());
            Class stub = urlClassLoader.loadClass("net.jenzabar.test.DynCode");
            stub.newInstance();
            
            loadInputStream(RESOURCE_NAME2);
            
            
        } catch (Exception e) {
            e.printStackTrace();

        }

    
    }
    
    
public static void main(String[] args) {
        JarCode jarCode = new JarCode();

    }


    
}






package net.jenzabar.test;


DYNCODE.JAVA

import java.io.InputStream;


/**
 * DynCode is loaded using the URLClassLoader. DynCode is loaded from an
 * hhtp server. It is not concluded in the test.jar.
 *
 */
public class DynCode {
    static final String RESOURCE_NAME = "application/Load_Before.xml";

    public DynCode() {
        System.out.println("************************** start DynCode constructor **************************");
        System.out.println("**");

        Class anchorClass = application.ApplicationAnchor.class;
        System.out.println("** anchor class name " + anchorClass.getName());

        ClassLoader classLoader = anchorClass.getClassLoader();
        System.out.println("** classloader class name " + classLoader.getClass().getName());

        InputStream inputStream = classLoader.getResourceAsStream(RESOURCE_NAME);
        System.out.println("** " + RESOURCE_NAME + (inputStream == null ? " was not loaded" : " was loaded successfully"));
        
        System.out.println("**");
        System.out.println("*************************** end DynCode constructor ***************************");
        
    }
    
}



LOAD_BEFORE.XML
<?xml version="1.0" encoding="UTF-8"?>
<bizobject name="LoadBefore"/>

LOAD_AFTER.XML
<?xml version="1.0" encoding="UTF-8"?>
<bizobject name="LoadAfter"/>




APPLICATIONANCHOR.JAVA

package application;


public class ApplicationAnchor
{

    public ApplicationAnchor()
    {
    }
}

---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
we are loading xml resources from the server