Re: NoSuchMethodError because of signature?

[Peter Dow <petercdow@xxxxxxxxx>]

Slight oops there...the square brackets belong after the variable name, i.e.

    public static void main (String argv[]) {

But that still didn't work.  I finally found a sample Hello.class that had

    public static void main (String argsݨ) {

which compiled ok.  That's with ccsid 1252.

So it's compiled, and I ran it, and I now I get

qsh cmd('java -classpath $CLASSPATH testjava.class')

Exception in thread "main" java.lang.NoClassDefFoundError: testjava.class
Caused by: java.lang.ClassNotFoundException: testjava.class
 at java.net.URLClassLoader.findClass(URLClassLoader.java:497)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:639)
 at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:605)

After some googling I thought I had it because the testjava.class file's 
authority was *RW, but I got the same error after changing it to *RWX.

On 7/18/2011 6:32 PM, Gary L Peskin wrote:
> The main method has to accept an array of Strings, even if you're not
> actually passing anything in.  You need to have:
>
>    public static void main(String[] argv)
>    {
>      ...
>    }
>
> You don't need to name the variable argv -- you can name it whatever you
> want.
>
> HTH,
> Gary
>
> > -----Original Message-----
> > From: java400-l-bounces@xxxxxxxxxxxx [mailto:java400-l-
> > bounces@xxxxxxxxxxxx] On Behalf Of Peter Dow
> > Sent: Monday, July 18, 2011 3:19 PM
> > To: Java Programming on and around the iSeries / AS400
> > Subject: NoSuchMethodError because of signature?
> >
> > Moving right along with my testjava.java program, I got it compiled, and
> > when I attempt to run it with
> >
> > qsh cmd('java /home/pdow/testjava.class')
> >
> > I get the following error:
> >
> > Exception in thread "main" java.lang.NoSuchMethodError:
> > testjava.main(ÝLjava/lang/String;)V
> >
> > qsh cmd('javap -s -public -classpath $CLASSPATH
> > /home/pdow/testjava.class')
> >
> > shows
> >
> > Compiled from "testjava.java"
> > public class testjava extends java.lang.Object{ public testjava();
> >     Signature: ()V
> > public static void main();
> >     Signature: ()V
> > }
> >
> > What's going on? Why does the error seem to indicate I should be passing
> > it a string?
> >
> > --*
> > Peter Dow*/
> > Dow Software Services, Inc.
> > 909 793-9050
> > pdow@xxxxxxxxxxxxxxx<mailto:pdow@xxxxxxxxxxxxxxx>  /