Re: Newbee problem running java program -- JAVA400-L


NoClassDefFoundError means a class or something
it refers to cannot be found.
http://java.sun.com/j2se/1.3/docs/api/index.html
http://java.sun.com/j2se/1.3/docs/api/java/lang/NoClassDefFoundError.html

Yes, it has something to do with your classpath.
You never really told us how you tried to run it so its hard to say
what you're doing wrong.
CLASSPATH is exactly similar in concept to PATH on Windows or UNIX.
Its used to find all your java classes.

From CL command line try:
ADDENVVAR CLASSPATH '/myjava/bud'
JAVA CLASS(TestListing)

If it still doesn't work, its likely not finding a class that TestListing
is using.
Try the OPTION(*VERBOSE) option and look for your classes
and where they are loaded from.



"The stuff we call "software" is not like anything that human society
  is used to thinking about. Software is something like a machine, and
  something like mathematics, and something like language, and
  something like thought, and art, and information...
  but software is not in fact any of those other things."
Bruce Sterling - The Hacker Crackdown

Fred A. Kulack  -  AS/400e  Java and Java DB2 access, Jdbc, JTA, etc...
IBM in Rochester, MN  (Phone: 507.253.5982   T/L 553-5982)
mailto:kulack@us.ibm.com   Personal: mailto:kulack@bresnanlink.net
AOL Instant Messenger: Home:FKulack  Work:FKulackWrk


"Tom Tufankjian" <Tom_Tufankjian@hbltd.com>@midrange.com on 03/02/2001
08:46:55 AM

Please respond to JAVA400-L@midrange.com

Sent by:  owner-java400-l@midrange.com


To:   JAVA400-L@midrange.com
cc:
Subject:  Newbee problem running java program






I am very new at java and I've written a program that works in the Visual
Age environment.  However when I export my .class and .java files to a
folder on the IFS and attempt to run the program on the AS400, I get the
following:

java.lang.NoClassDefFoundError: TestListing
      java/lang/Throwable.<init>(Ljava/lang/String;)V+4 (Throwable.java:81)
Java program completed with exit code 1

1.  Where can I find out what this means?
2.  Does it have something to do with classpath?  I am very weak in this
area.
3.  How can I fix this problem?

The folder on the IFS is /myjava/bud.   Bud is the package name and it's
referenced in the classes.
The classes are TestListing and PrintTheReport.  TestListing just creates
an instance of PrintTheReport to run it.

What the program does is to read a file on the AS400 and print a listing of
it on System.out.   Nothing fancy.

Any help will be greatly appreciated!

Thanks!




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