Godmar,
I copied and pasted your rule and run a simple test using the same
version of jars you mentioned bellow, but I can't reproduce the problem you
are having. If it is still a problem for you, can you zip a sample test
showing the problem and send us?
Thanks,
Edson
2008/2/13, Godmar Back [EMAIL PROTECTED]:
Hi,
I've recently upgraded to Drools 4.0.4 with mvel14-1.2.21.jar, and I'm
having severe issues with its parser.
For instance, this simple .drl file:
--
package test;
rule Rule #1
dialect mvel
when
then
/* a single-line comment */
System.out.println(hello world);
end
--
results in:
org.mvel.PropertyAccessException: unable to resolve property: ;
at
org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(
ReflectiveAccessorOptimizer.java:285)
at
org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.optimizeAccessor
(ReflectiveAccessorOptimizer.java:107)
at org.mvel.ASTNode.getReducedValueAccelerated(ASTNode.java:185)
at org.mvel.MVELRuntime.execute(MVELRuntime.java:88)
at org.mvel.CompiledExpression.getValue(CompiledExpression.java
:107)
at org.mvel.MVEL.executeExpression(MVEL.java:223)
at org.drools.base.mvel.MVELConsequence.evaluate(
MVELConsequence.java:47)
at org.drools.common.DefaultAgenda.fireActivation(
DefaultAgenda.java:550)
at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java
:514)
at org.drools.common.AbstractWorkingMemory.fireAllRules(
AbstractWorkingMemory.java:471)
at org.drools.common.AbstractWorkingMemory.fireAllRules(
AbstractWorkingMemory.java:433)
--
Switching to dialect java, or removing the /* single-line comment
*/, helps. So does replacing the comment with a // style comment.
There are many more weirdnesses I'm encountering (I've filed a number
of bugs already), but I'm wondering if something else isn't amiss
here. I also tried mvel16-1.2.22.jar, same effect. On the other hand,
running just the RHS in mvelsh works just fine.
In this context, I'd like to voice the wish that Drools include a
command-line driver that can load and execute .drl files for testing.
- Godmar
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--
Edson Tirelli
JBoss Drools Core Development
Office: +55 11 3529-6000
Mobile: +55 11 9287-5646
JBoss, a division of Red Hat @ www.jboss.com
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