Should be fixed now.
Thanks,
- Godmar
>
> Hello.
>
> I have run into another problem with kaffe. This example code
> shows how the classloader works in the JDK and that Kaffe
> just calls exit(). I tried to implement a fix for this problem
> in the file kaffe/kaffevm/readClass.c but the code does not
> want to compile. Could someone with more knowledge of the kaffe
> internals take a look at this problem and my partial fix?
>
>
>
> public class ClassDefineBug {
>
> public static void main(String[] argv) throws Exception {
>
> MyClassLoader mcl = new MyClassLoader();
>
> String data = "somestring";
>
> Class result = mcl.defineClass(null, data.getBytes());
>
> System.out.println("result is " + result);
> }
> }
>
> class MyClassLoader extends ClassLoader {
>
> Class defineClass(String className, byte[] classData) {
> Class result = null;
> try {
> result = defineClass(null, classData, 0, classData.length);
> } catch (ClassFormatError e) {
> System.out.println("ClassFormatError caught \"" + e.getMessage()
> + "\"");
> }
> return result;
> }
>
>
> protected Class loadClass(String className,boolean resolveIt)
> throws ClassNotFoundException, SecurityException
> {
> return Class.forName(className);
> }
>
> }
>
>
>
>
>
>
> JDK output
>
> % java ClassDefineBug
> ClassFormatError caught "Bad magic number"
> result is null
>
>
>
> Kaffe output
>
> % kaffe ClassDefineBug
> Bad magic 736f6d65 in class
>
>
>
>
>
> Index: readClass.c
> ===================================================================
> RCS file: /home/cvspublic/kaffe/kaffe/kaffevm/readClass.c,v
> retrieving revision 1.5
> diff -u -r1.5 readClass.c
> --- readClass.c 1999/01/07 21:03:19 1.5
> +++ readClass.c 1999/03/18 03:13:31
> @@ -19,6 +19,7 @@
> #include "file.h"
> #include "access.h"
> #include "object.h"
> +#include "errors.h"
> #include "constants.h"
> #ifdef KAFFEH
> #include <readClassConfig.h>
> @@ -41,8 +42,13 @@
> /* Read in class info */
> readu4(&magic, fp);
> if (magic != JAVAMAGIC) {
> + /*
> fprintf(stderr, "Bad magic %x in class\n", magic);
> EXIT(1);
> + */
> + SET_LANG_EXCEPTION_MESSAGE(einfo,
> + ClassFormatError, "Bad magic number");
> + return (0);
> }
> readu2(&minor_version, fp);
> readu2(&major_version, fp);
>
>
>
>
> thanks
>
> Mo DeJong
> dejong at cs.umn.edu
>
>
