[rules-users] Eclipse + drools = The Eclipse JDT Core jar is not in the classpath ??

Dale Wyttenbach dale.wyttenbach at gmail.com
Mon Mar 22 07:54:31 EDT 2010


These are the dependencies I added to my pom for jdt.  It's been a while,
but I'm pretty sure the antlr and mvel dependencies were required once I
added eclipse jdt.

        <dependency>
            <groupId>org.eclipse.jdt</groupId>
            <artifactId>core</artifactId>
            <version>3.4.2.v_883_R34x</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.antlr</groupId>
            <artifactId>antlr-runtime</artifactId>
            <version>3.1.3</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.mvel</groupId>
            <artifactId>mvel2</artifactId>
            <version>2.0.16</version>
            <scope>test</scope>
        </dependency>


On Sat, Mar 20, 2010 at 8:26 AM, Patrick Sannes <patrick at i-dev.net> wrote:

> Hi Lucas,
>
> When I add the org.eclipse.jdt.core_version as external reference to the
> project it works. Thanks for helping me out. Now off to the manual ;)
>
> Regards,
> Patrick
>
> > -----Original Message-----
> > From: rules-users-bounces at lists.jboss.org [mailto:rules-users-
> > bounces at lists.jboss.org] On Behalf Of Lucas Amador
> > Sent: Saturday, March 20, 2010 1:17 PM
> > To: Rules Users List
> > Subject: Re: [rules-users] Eclipse + drools = The Eclipse JDT Core jar is
> not in
> > the classpath ??
> >
> > Patrick,
> > you need to add the lib org.eclipse.core.jdt-version that is on your
> eclipse
> > plugins folder to your drools runtime or classpath
> >
> > Or you can use Janino, as salaboy said
> >
> > Sent from my phone
> >
> > On 20/03/2010, at 10:44, "Patrick Sannes" <patrick at i-dev.net> wrote:
> >
> > > Im a real beginner with Drools, can you point me out to a document
> > > that tells me how to do that?
> > >
> > >> -----Original Message-----
> > >> From: rules-users-bounces at lists.jboss.org [mailto:rules-users-
> > >> bounces at lists.jboss.org] On Behalf Of Salaboy
> > >> Sent: Saturday, March 20, 2010 1:22 PM
> > >> To: Rules Users List
> > >> Subject: Re: [rules-users] Eclipse + drools = The Eclipse JDT Core
> > >> jar is
> > > not in
> > >> the classpath ??
> > >>
> > >> That's a common eclipse error, if you cannot fix it you can always
> > >> include
> > > the
> > >> janino dependency.
> > >>
> > >> - Ing. Mauricio Salatino -
> > >>
> > >> On Mar 20, 2010, at 6:12, "Patrick Sannes" <patrick at i-dev.net> wrote:
> > >>
> > >>> Hi,
> > >>>
> > >>> I tried to search a lot, but couldn't find a real solution to my
> > >>> problem. I have the latest version of Eclipse installed and
> > >>> installed the drools plugin
> > >>> 5.0.1 . I configured runtime (dropped it in c:\Users\Patrick
> > >>> \Droolsruntime\)
> > >>> After starting a new drools project It created a Hello World example
> > >>> (im new, so a nice start ;)) When I tried to run the DroolsTest.Java
> > >>> I get the error at the end of the email.
> > >>> Hope someone can help me out.
> > >>>
> > >>> Regards
> > >>> Patrick
> > >>>
> > >>> org.drools.RuntimeDroolsException: Unable to load dialect
> > >>> 'org.drools.rule.builder.dialect.java.JavaDialectConfiguration:java:
> > >>> or
> >
> >
> >
> > >>> g.droo
> > >>
> > >>
> > >>> ls.rule.builder.dialect.java.JavaDialectConfiguration'
> > >>>  at
> > >>> org.drools.compiler.PackageBuilderConfiguration.addDialect
> > >>> (PackageBuilderCon
> > >>> figuration.java:274)
> > >>>  at
> > >>> org.drools.compiler.PackageBuilderConfiguration.buildDialectConfigur
> > >>> at
> >
> >
> >
> > >>> ionMap
> > >>
> > >>
> > >>> (PackageBuilderConfiguration.java:259)
> > >>>  at
> > >>> org.drools.compiler.PackageBuilderConfiguration.init
> > >>> (PackageBuilderConfigura
> > >>> tion.java:176)
> > >>>  at
> > >>> org.drools.compiler.PackageBuilderConfiguration.<init>
> > >>> (PackageBuilderConfigu
> > >>> ration.java:153)
> > >>>  at
> > >>> org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:242)
> > >>>  at
> > >>> org.drools.compiler.PackageBuilder.<init>(PackageBuilder.java:142)
> > >>>  at
> > >>>
> > >>
> > org.drools.builder.impl.KnowledgeBuilderProviderImpl.newKnowledgeBuil
> > >> d
> >
> >
> >
> > >>> er(
> > >>> Kno
> > >>> wledgeBuilderProviderImpl.java:29)
> > >>>  at
> > >>> org.drools.builder.KnowledgeBuilderFactory.newKnowledgeBuilder
> > >>> (KnowledgeBuil
> > >>> derFactory.java:29)
> > >>>  at com.sample.DroolsTest.readKnowledgeBase(DroolsTest.java:39)
> > >>>  at com.sample.DroolsTest.main(DroolsTest.java:23)
> > >>> Caused by: java.lang.RuntimeException: The Eclipse JDT Core jar is
> > >>> not in the classpath  at
> > >>> org.drools.rule.builder.dialect.java.JavaDialectConfiguration.setCom
> > >>> pi
> >
> >
> >
> > >>> ler(
> > >>> Ja
> > >>> vaDialectConfiguration.java:94)
> > >>>  at
> > >>> org.drools.rule.builder.dialect.java.JavaDialectConfiguration.init
> > >>> (JavaDiale
> > >>> ctConfiguration.java:55)
> > >>>  at
> > >>> org.drools.compiler.PackageBuilderConfiguration.addDialect
> > >>> (PackageBuilderCon
> > >>> figuration.java:270)
> > >>>  ... 9 more
> > >>>
> > >>> _______________________________________________
> > >>> 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
> > >
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