🚀 go-pugleaf

Mikael,

there is no API support for that. There is a "Package" class 
but that is of no help. ClassLoader would be the place to look, 
but there is no out-of-the-box method there either. 

Each ClassLoader maintains a private Vector of "his" classes 
(doc: "do keep the classes from being GC'ed"). 
Getting the field with reflection is a bit tricky because it is 
private (getField won't work) and inherited (getDeclaredField 
won't work on the concrete ClassLoader subclass):

Class c = this.getClass(); //whatever class to start with
ClassLoader cl = c.getClassLoader();
Class theClassLoaderClass = cl.getClass();
while (!(theClassLoaderClass.equals(ClassLoader.class))) {
  classLoader = theClassLoaderClass.getSuperclass();
}
Field classesField = theClassLoaderClass.getDeclaredField("classes");
classesField.setAccessible(true); //it's private!
Vector v = (Vector)classesField.get(cl);

You now have all the classes of a given ClassLoader. 
(here I assume that no ClassLoader subclass overrides the 
addClass method without a super.addClass call <g>)
You would now need to loop over all active ClassLoader to get 
the whole picture. 
But how do you get all active ClassLoader?? lol!
Well, JBuilder does it, so it should be possible. <g>

Josh...?! ;-)

Torsten

"Mikael Fransson" <mikael.fransson@aspiro.com> wrote:
>im trying to make a method to gett all Classes in a Package
>ex:
>public static Class[] getAllClassesInPackage(String package)
>{
>    ...
>    return classArray;
>}
>
>Class[] classes=ClassLister.getAllClassesInPackage("java.util");
>for (int i = 0; i < classes.length; i++)
>{
>    System.out.println(classes[i].getName());
>}
>
>Any ideas ?
>
>frasse@rings.se
>
>