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.lang.ClassLoader.loadClass(
at sun.misc.Launcher$AppClassLoader.loadClass(
at java.lang.ClassLoader.loadClass(

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


-----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 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:

qsh cmd('javap -s -public -classpath $CLASSPATH


Compiled from ""
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> /

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