Re: a bit off-topic: upgrading as400 v4r5m0 from java 1.1.8 to ja va 1.3

On 2002.08.22 16:03 David Gibbs wrote:
> "Mihael Knezevic" <m.knezevic=+gMMHG75NKY@public.gmane.org> wrote in
> message
> news:<20020822082246.E10637@P001W025>...
> > does anybody have any experience with updating the jdk version of an
> > as400. i tried it and installed the group ptf sf99068 and after an ipl
> the
> > java ptf sf63319. after i changed the SystemDefault.properties file to
> > java.version=1.3 no java program worked anymore. i checked the version
> > with the command java -version on the qsh. that was ok. then i undid my
> > change of the SystemDefault.properties file to java.version=1.1.8 .
> after
> > that, all java program were working again.
>
> In what way was the program not working?
>
> What error did you get?
>

my SystemDefault.properties file only consists of the line
"java.version=1.3".

when i try to run this simple java program:

public class GetOs
{
         public static void main (String args[])
         {
                 System.out.println(System.getProperty("os.name"));
                 System.exit(0);
         }
}


i'm getting the following error:

java.lang.ClassFormatError:
GetOs
java/lang/Throwable.<init>(Ljava/lang/String;)V+4
(Throwable.java:90)
java/lang/ClassLoader.defineClass(Ljava/lang/String;[BIILjava/security/
ProtectionDomain;)Ljava/lang/Class;+79
(ClassLoader.java:486)
java/net/URLClassLoader.defineClass(Ljava/lang/String;Lsun/misc/Resourc
    e;)Ljava/lang/Class;+196
(URLClassLoader.java:276)
java/net/URLClassLoader$1.run()Ljava/lang/Object;+42 (URLClassLoader.ja

va:199)
java/net/URLClassLoader.findClass(Ljava/lang/String;)Ljava/lang/Class;+
    13
(URLClassLoader.java:192)
java/lang/ClassLoader.loadClass(Ljava/lang/String;Z)Ljava/lang/Class;+4
    1
(ClassLoader.java:297)
sun/misc/Launcher$AppClassLoader.loadClass(Ljava/lang/String;Z)Ljava/la
    ng/Class;+33
(Launcher.java:286)
java/lang/ClassLoader.loadClassInternal(Ljava/lang/String;)Ljava/lang/C
    lass;+1 (ClassLoader.java:313)

when i try to compile the source file i get:
GetOs.java:3: cannot resolve
symbol                                             symbol  : class
String                                                          location:
class
GetOs
public static void main (String
args[])
^                                              GetOs.java:5: cannot
resolve symbol                                             symbol  :
variable System
location: class GetOs     GetOs.java:5: cannot resolve
symbol                                             symbol  : class
out                                                             location:
package
System
System.out.println(System.getProperty("os.name"));
^                                                         GetOs.java:6:
cannot resolve symbol                                             symbol
: variable System
location: class
GetOs
System.exit(0);

seems like a classpath problem. but where do i set the classpath
systemwide? and shouldn't  it be set by default after the update? and what
jars must be in the classpath?

sorry for the stupid questions but it looks a bit different than on simple
pc.