[news.eclipse.modeling.gmt] Re: [Epsilon] NoSuchMethodError running EOL

[Dimitrios Kolovos <dskolovos@xxxxxxxxx>]

Hi Conrad,

This is strange! The following Java code works in my machine without 
problems:

package org.epsilon.eol;

public class EolTest {
	
	public static void main(String[] args) throws Exception {
		EolModule module = new EolModule();
		module.parse("'hello'.println();");
		module.execute();
	}
		
}

I think that the problem should be your ANTLR version (or conflicting 
ANTLR versions) or your Java version (1.5+ required). Are you running 
Epsilon from CVS? If this is the case, have you followed the 
instructions provided in 
http://www.eclipse.org/gmt/epsilon/doc/EpsilonCVS.pdf to get the sources 
from CVS?

Cheers,
Dimtirios

Conrad Hoffmann wrote:
> Hi,
>
> I am trying to run an EOL program from within Java. I used the 
> RunEOLFromJava example from the homepage, which runs fine. I basically 
> did nothing but copy the code from Main.java into my own program and 
> adjust filenames for model and metamodel.
>
> When I try to run it, I always get the following exception when calling 
> module.parse(code):
> java.lang.NoSuchMethodError: 
> org.epsilon.eol.parse.ast.EolAstFactory.setASTNodeClass(Ljava/lang/Class;)V
>     at 
> org.epsilon.eol.parse.ast.EolAstFactory.<init>(EolAstFactory.java:23)
>     at org.epsilon.eol.AbstractModule.parse(AbstractModule.java:62)
>     at org.epsilon.eol.AbstractModule.parse(AbstractModule.java:56)
>
> I added all required bundles to my manifest, and loading the model seems 
> to work fine. Also, since the module does not know about the model yet 
> (see below), I figure it can't be a faulty model. I dumbed the code down 
> to a single println statement, but it doesn't help either.
>
> Any hints on what's wrong would be very helpful.
>
> Thanks a lot, Conrad Hoffmann
>
> EolModule module = new EolModule();
> module.parse(code);    <- this line throws the error
> module.getContext().getModelRepository().addModel(model);