Name: rlT66838			Date: 05/11/2000


Classic VM (build JDK-1.2.2-001, native threads, symcjit)

/*
URLClassLoader.getResource() FAIL on .jar file (return null with .jar file)
JDK 1.2.2-001 (Windows98 and Linux), jdk 1.3 Windows

1. Put this file into some work directory (for example y)
2. Create file 'x' in the same directory (y)
3. Compile
   javac -classpath . URLClassLoader.java
4. Run test from directory
   java -cp . URLClassLoader

   RESULT OK (resource 'x' founded):
   Resource 'x' by Class ClassLoader:file:/E:/y/x
   Class file by Class ClassLoader:file:/E:/y/URLClassLoaderTest.class
   URLClassLoader URL: file:/E:/y/
   Resource 'x' by URLClassLoader:file:/E:/y/x
   Class file by URLClassLoader:file:/E:/y/URLClassLoaderTest.class

5. Pack files 'URLClassLoader.class' and 'x' into jar
   jar cvf url.jar URLClassLoader.class x

6. Run test from within jar file
   java -cp url.jar URLClassLoader

   RESULT BAD (resource 'x' not found)
   Resource 'x' by Class ClassLoader:null
   Class file by Class
   ClassLoader:jar:file:/E:/y/url.jar!/URLClassLoaderTest.class
   URLClassLoader URL: file:/E:/y/url.jar!/
   Resource 'x' by URLClassLoader:null
   Class file by URLClassLoader:jar:file:/E:/y/url.jar!/URLClassLoaderTest.class

WHAT IS WRONG ??

*/

import java.net.*;

public class URLClassLoaderTest
{
	public static void main(String[] args)
	{
      URLClassLoaderTest test = new URLClassLoaderTest();
      // reference class (point to resources)
      Class where = test.getClass();
      URL u = where.getResource("x");  // OK with local filesystem, null with .jar
      URL [] url = {where.getResource("URLClassLoaderTest.class")};
        System.out.println("Resource 'x' by Class ClassLoader:" + u);
		System.out.println("Class file by Class ClassLoader:" + url[0]);

      String s = url[0].getFile();
      int k = s.lastIndexOf("/");
      s = s.substring(0, k + 1);
      try {
      	url[0] = new URL(url[0], s);
      // Now url[0] point to directory with class file (and 'x' file)
      } catch (Exception e) {
         System.out.println(e);
      }
     System.out.println("URLClassLoader URL: " + url[0]);
      // create ClassLoader
      URLClassLoader ucl = new URLClassLoader(url);
      u = ucl.getResource("x"); // OK with local filesystem, null with .jar file
		System.out.println("Resource 'x' by URLClassLoader:" + u);
      u = ucl.getResource("URLClassLoaderTest.class");
		System.out.println("Class file by URLClassLoader:" + u);
	}
}
(Review ID: 104729) 
======================================================================