[rules-users] The Eclipse JDT Core jar is not in the classpath error

[Edson Tirelli]

   Chris,

   There must be a problem with the classpath. That message only shows up
when the antlr-runtime jar is not in the classpath.

java.lang.NoClassDefFoundError: org/antlr/runtime/tree/TreeNodeStream

    Also, I successfully run examples from command line, outside of eclipse,
so it is unlikely that you are being hit by some hidden dependency.

    Sorry for not helping you more, but continue investigating your netbeans
project classpath for "odd" things.

    Oh, and BTW, antlr runtimes are not compatible between versions, so, if
your netbeans has a different antlr runtime jar in the classpath in a higher
priority search order, it will give you similar problems.

    []s
    Edson


2009/6/2 Chris Richmond <crichmond at referentia.com>

> Marcus,
>
> I only have the one version of antlr jar that comes in the /lib folder of
> the drools 5.0 binary distribution, however that was enough to allow me to
> run the stockticker fusion sample in eclipse no problem.  I ported the
> project to Netbeans and am relying on all of the same jars from that binary
> distribution, but getting this error now.   Perhaps there is something that
> is being provided by the eclipse drools plugin?
>
> Thanks,
> Chris
>
> -----Original Message-----
> From: rules-users-bounces at lists.jboss.org
> [mailto:rules-users-bounces at lists.jboss.org] On Behalf Of Marcus Ilgner
> Sent: Monday, June 01, 2009 11:14 PM
> To: Rules Users List
> Subject: Re: [rules-users] The Eclipse JDT Core jar is not in the classpath
> error
>
> 2009/6/2 Chris Richmond <crichmond at referentia.com>:
> > Hello,
> >
> >
> >
> > I am using netbeans and ivy with Drools 5.  I have successfully named,
> > published the jars from drools to and could build my port of the stock
> > ticker application in netbeans, but when I try to run it, I get the
> > following error:
> >
> >
> >
> >
> >
> > java.lang.NoClassDefFoundError: org/antlr/runtime/tree/TreeNodeStream
> >
> >
> >
> > I have the antlr-runtime jar from the bin/lib on my classpath where I
> added
> > all the others, but it always fails at this line
> >
> > In loadRuleBase() in Broker.java of the stock ticker sample
> >
> >
> >
> > builder.add( ResourceFactory.newInputStreamResource(
> > Broker.class.getResourceAsStream( RULES_FILE ) ),
> >
> > ResourceType.DRL);.
> >
> >
> >
> >
> >
> > Does anyone have any ideas what jar I might be missing if it’s not the
> > antlr-runtime?
> >
> >
> >
> > Thanks,
> >
> > Chris
> >
>
> Hi,
>
> in one of my projects, I actually needed two different versions of
> antlr in the classpath. Did you check if the class referenced in the
> exception actually exists in the deployed antlr jar file?
>
> Best regards
> Marcus
>
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
>
>
>
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>



-- 
 Edson Tirelli
 JBoss Drools Core Development
 JBoss, a division of Red Hat @ www.jboss.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.jboss.org/pipermail/rules-users/attachments/20090602/33df3cb0/attachment.html