Hi Jochen,
Maybe I'm misunderstanding you, but isn't it as simple as this:
public class test
{
public static void main(String[] args) throws Exception
{
ClassLoader cl = new ClassLoader(null) { };
System.out.println(cl.loadClass("java.lang.Object"));
System.out.println(cl.loadClass("test"));
}
}
The cl ClassLoader will only load bootstrap classes. If you run this the result
is:
class java.lang.Object
Exception in thread "main" java.lang.ClassNotFoundException: test
at java.lang.ClassLoader.findClass(ClassLoader.java:359)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at test.main(test.java:7)
Regards,
Jeroen
> -----Original Message-----
> From: jvm-languages@googlegroups.com [mailto:jvm-
> langua...@googlegroups.com] On Behalf Of Jochen Theodorou
> Sent: Thursday, April 16, 2009 03:04
> To: jvm-languages@googlegroups.com
> Subject: [jvm-l] bootstrap class loader
>
>
> Hi all,
>
> it seems the spec isn't all too clear in that area. For our compiler we
> would need a ClassLoader that does not load class that are given as
> classpath.... I guess I am not very clear....
>
> java -cp A.jar foo.Bar
>
> we now need the class loader that is allowed to laod classes from
> rt.jar, but does not laod classes from A.jar. It seems the spec says
> for
> 1.2 that the bootstrap class loader will not do that, but how to get a
> hand on it? Giving null as parent seems to result in the system class
> loader, which is the one that loads the classes from A.jar... so it is
> the wrong one.
>
> Is there any way to do this?
>
> bye blackdrag
>
> --
> Jochen "blackdrag" Theodorou
> The Groovy Project Tech Lead (http://groovy.codehaus.org)
> http://blackdragsview.blogspot.com/
>
>
>
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups "JVM
Languages" group.
To post to this group, send email to jvm-languages@googlegroups.com
To unsubscribe from this group, send email to
jvm-languages+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/jvm-languages?hl=en
-~----------~----~----~----~------~----~------~--~---
