[rules-users] eclipse-jdtcore.jar

Wed Jun 4 05:55:17 EDT 2008

I eventually switched to JANINO because we are not using any Java 5
features.
I discovered that some of the info available on the web is outdated when
switching between Eclipse JDT ad Janino.
The following system property has to be set:
drools.dialect.java.compiler=JANINO some docs/posts referred to
drools.compiler=JANINO

I was hoping someone could indicate if/how properties can be configured when
using JSR-94 to influence the compiler choice or other properties drools
looks for.

  _____  

From: rules-users-bounces at lists.jboss.org
[mailto:rules-users-bounces at lists.jboss.org] On Behalf Of Mark Proctor
Sent: 03 June 2008 17:19
To: Rules Users List
Subject: Re: [rules-users] eclipse-jdtcore.jar

Corneil du Plessis wrote: 

Problem I have is that it is in WebSphere/lib so it gets loaded before

anything in my application, when the classloader is set to parent first. 

When I change the class loader to parent last I run into a new set of

problem with some of the XML based libraries. 

If you search the mailing list archive, I believe people have resolved that
issue. You can always switch drools to use janino too, see the wiki for more
details on that.

-----Original Message-----

From: rules-users-bounces at lists.jboss.org

[mailto:rules-users-bounces at lists.jboss.org] On Behalf Of Marcus Ilgner

Sent: 03 June 2008 15:35

To: Rules Users List

Subject: Re: [rules-users] eclipse-jdtcore.jar

Hi,

just as a side note: I had one project using Eclipse which already used

another version of the JDT core. Encountering the same problem, I just put

the core-3.2.3.v_686_R32x.jar from Drools in my project, too, and it worked

without problems.

Best regards

Marcus

On Tue, Jun 3, 2008 at 3:25 PM, Augusto Rodriguez

 <mailto:augusto.rodriguez at globant.com> <augusto.rodriguez at globant.com>
wrote:

Hi Corneil,

Unluckily I've seen that error more often that I would like. It's not 

a bug in drools, but is related to the dependencies of the

drools-compiler.

There's a big chance that you have a different version of the JDT core 

jar in your classpath (drools depends on version 3.2.3 - the filename 

of that jar is core-3.2.3.v_686_R32x.jar). This jar is used by drools 

to compile the rules.

I hope this helps you to solve this issue.

Cheers,

Augusto

Corneil du Plessis wrote:

I am experiencing a conflict with a deployment:

We used WebSphere Application Server 6.0.2.x in our integration 

testing environment and now the deployed application at a customer 

site is reporting the following exception:

java.lang.NoSuchMethodError:

org.eclipse.jdt.internal.compiler.CompilationResult: method 

getProblems()[Lorg/eclipse/jdt/core/compiler/CategorizedProblem; not

found

       at

org.drools.commons.jci.compilers.EclipseJavaCompiler$3.acceptResult(E

clipseJ

avaCompiler.java(Compiled Code))

       at

org.eclipse.jdt.internal.compiler.Compiler.handleInternalException(Compiler.

java(Compiled Code))

       at

org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java(Comp

iled

Code))

       at

org.drools.commons.jci.compilers.EclipseJavaCompiler.compile(EclipseJ

avaComp

iler.java(Compiled Code))

       at

org.drools.commons.jci.compilers.AbstractJavaCompiler.compile(Abstrac

tJavaCo

mpiler.java:51)

       at

org.drools.rule.builder.dialect.java.JavaDialect.compileAll(JavaDiale

ct.java

:342)

Has anyone else comes across this?

I am not sure where the JAR comes from because has not version info.

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