uploading VJ-built Java classes to Linux
by Bennett Haselton <bennett(at)peacefire.org>
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Date: |
Sat, 04 Aug 2001 16:25:33 -0700 |
To: |
hwg-servers(at)hwg.org |
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I'm writing a CGI program in Java to be run on a Linux machine. What is
the one thing you have to tweak in Visual J++ so that you can create Java
classes in VJ++ and have them work on a Linux command line? I'm using VJ++
to write it since I like the statement completion and other features of the
text editor.
I created a new Visual J++ project of type "Console Application", and
modified the main function of the default Class1 class to print "3":
>>>
public class Class1
{
/**
* The main entry point for the application.
*
* @param args Array of parameters passed to the application
* via the command line.
*/
public static void main (String[] args)
{
System.out.println(3);
}
}
>>>
Building it in VJ++ produces a Class1.class file and a Project1.exe file
which outputs "3" when run on the command line. But when I upload the
Class1.class file (in binary mode, of course) to the Linux server and run
"javac Class1.class" from there, I get:
>>>
server1:/home/bhaselto/web/html/tlnew$ javac Class1.class
java.lang.NoClassDefFoundError: antlr/collections/AST
at at.dms.kjc.Main.beautifyParseError(Main.java:692)
at at.dms.kjc.Main.parseFile(Main.java:488)
at at.dms.kjc.Main.run(Main.java:119)
at at.dms.kjc.Main.compile(Main.java:449)
at at.dms.kjc.Main.main(Main.java:432)
>>>
My first thought was that this error must have been committed thousands of
times by people trying to do this before, so I did an Alta Vista search for
"java.lang.NoClassDefFoundError: antlr/collections/AST"
hoping to find other pages discussing this problem. This technique almost
always works for tracking down the cause of errors that have been seen
before by other people; this time, however, it produced nothing useful.
Is this related to the controversy over Sun's charges that Microsoft
deliberately rigged VJ++ to create classes that could not be run on
non-Microsoft platforms? Or is there something simple that I forgot to do?
-Bennett
bennett(at)peacefire.org http://www.peacefire.org
(425) 649 9024
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