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From: Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid>
Newsgroups: comp.lang.java.programmer
Subject: Re: Java Jython RDKit, some progress, still confused
Date: Thu, 18 Jun 2020 16:15:55 +0200
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On 2020-06-17 17:58, vjp2.at@at.BioStrategist.dot.dot.com wrote:
> Same error  "could not find the main class"
> 
> Got rid of the -cp and -jar and again, same error
> 
> Found something online that rnning a program as
> java x.class intread of java x causes this problem
> 
> But I'm still stumped why they complied something used in classpath as .jar
> instead of .class
> 
> YOu can find out about my setup by google <jython rdkit>
> 
> https://www.baeldung.com/java-could-not-find-load-main-class
> 

JARs normally declare their Main (entry point) class in
META-INF/MANIFEST.MF. Maybe the version you have doesn't. Again, I would
encourage you to download an up-to-date version of jython-standalone.

Also, in order to eliminate mistakes stemming from the complex setup,
you should start by seeing whether you're able to run a simple script,
as I illustrated.

-- 
DF.