This is strange...
> Well, now the open connections should be closed when the classloaders
> are garbage collected. I m writing a test case now to get that theroy
> commited.
I wrote a little testclass and it seems that _any_ resource once touched
by an URLConnection cannot be removed on Windows anymore?!
\Daniel
See yourself:
import java.net.*;
import java.io.*;
public class Test
{
public static void main (String[] _args) throws Exception
{
if (_args.length != 2)
{
System.out.println ("usage: Test file_url_to_jar_package
file_path_in_the_package");
System.out.println ("Attention: the file_url_to_jar_package
gets deleted (eventually ;-))");
System.exit(0);
}
URL[] urls = new URL[] {new URL (_args[0])};
String res = _args[1];
/*
///////////////////////////////////////////////////////////////////////////////////////
System.out.println ("now trying to delete file: "+ new File
(urls[0].getFile()).delete());
///////////////////////////////////////////////////////////////////////////////////////
*/
/*
///////////////////////////////////////////////////////////////////////////////////////
ClassLoader cl = new URLClassLoader (urls,
Thread.currentThread().getContextClassLoader());
System.out.println ("created classloader.");
InputStream in = cl.getResourceAsStream (res);
///////////////////////////////////////////////////////////////////////////////////////
*/
///////////////////////////////////////////////////////////////////////////////////////
InputStream in = new URL ("jar:"+urls[0]+"!/"+res).openStream
();
///////////////////////////////////////////////////////////////////////////////////////
System.out.println ("created resource input stream.");
byte[] read = new byte[512];
int length = in.read (read);
in.close ();
if (length < 512)
System.out.println ("read whole resource into mem.");
else
System.out.println ("read first 512 byte of the resource
into mem.");
System.out.println ("now trying to delete file: "+ new File (new
URL (_args[0]).getFile()).delete());
/*
///////////////////////////////////////////////////////////////////////////////////////
System.out.println ("setting classloader to null.");
cl = null;
System.out.println ("now trying to delete file: "+ new File
(urls[0].getFile()).delete());
///////////////////////////////////////////////////////////////////////////////////////
*/
///////////////////////////////////////////////////////////////////////////////////////
System.out.println ("setting url to null.");
urls = null;
System.out.println ("now trying to delete file: "+ new File (new
URL (_args[0]).getFile()).delete());
///////////////////////////////////////////////////////////////////////////////////////
System.out.println ("do garbage collection...");
System.gc ();
System.out.println ("now trying to delete file: "+ new File (new
URL (_args[0]).getFile()).delete());
}
}
