[rules-users] Exception in thread "main" java.lang.Error: Unableto find unambiguously defined class
Anstis, Michael (M.)
manstis1 at ford.com
Mon Jan 22 04:48:05 EST 2007
Sorry, newbie question - JIRA?!?!
I can guess it's a bug reporting facility, but I don't know where to
access it.
I've had a good nose around on Jboss.com but am none the wiser.
Thanks,
Mike
-----Original Message-----
From: rules-users-bounces at lists.jboss.org
[mailto:rules-users-bounces at lists.jboss.org] On Behalf Of Mark Proctor
Sent: 20 January 2007 13:50
To: Rules Users List
Subject: Re: [rules-users] Exception in thread "main" java.lang.Error:
Unableto find unambiguously defined class
Actually this is also a bug, if you declare something as an import, it
should override the default java.lang.* imports - can you open a JIRA
for this bug.
Thanks
Mark
Edson Tirelli wrote:
> Michael,
>
> There is a java class named Process in java.lang package. As java
> imports all java.lang classes automatically, you will need to fully
> qualify your class name in this case.
>
> rule "A rule"
> when
> p:com.ford.nges.om.Process( )
> then
> System.out.println(p.toString());
> end
>
> I didn't test that, but shall work.
>
> []s
> Edson
>
> Anstis, Michael (M.) wrote:
>
>> Hi,
>>
>> I have a simple rule that references a "Process" fact:-
>>
>> package com.ford.nges.jboss.rules
>>
>> import com.ford.nges.om.Constants
>> import com.ford.nges.om.Component
>> import com.ford.nges.om.ResourceEntry
>> import com.ford.nges.om.Process
>> import com.ford.nges.om.Machine
>>
>> rule "A rule"
>> when
>> p:Process( )
>> then
>> System.out.println(p.toString());
>> end
>>
>> However I receive the following error on
>> builder.addPackageFromDrl(new
>> InputStreamReader(Main.class.getResourceAsStream("rules.drl"))); even
>> though I have an import statement.
>>
>> Exception in thread "main" java.lang.Error: Unable to find
>> unambiguously defined class 'Process', candidates are:
>> [java.lang.Process, com.ford.nges.om.Process]
>>
>> at
>> org.drools.semantics.java.ClassTypeResolver.resolveType(Unknown
>> Source)
>> at org.drools.semantics.java.RuleBuilder.build(Unknown
>> Source)
>> at org.drools.semantics.java.RuleBuilder.build(Unknown
>> Source)
>> at org.drools.semantics.java.RuleBuilder.build(Unknown
>> Source)
>> at org.drools.compiler.PackageBuilder.addRule(Unknown
>> Source)
>> at
org.drools.compiler.PackageBuilder.addPackage(Unknown
>> Source)
>> at
>> org.drools.compiler.PackageBuilder.addPackageFromDrl(Unknown
>> Source)
>> at com.ford.nges.Main.main(Main.java:43)
>>
>> If "Process" is referred to in the RHS or the Class name is not
>> Process I don't get the error.
>>
>> Any thoughts?
>>
>> With kind regards,
>>
>> Michael Anstis
>> -------------------------------------------
>> *Next Generation Estimating System*
>> ( Trafford House (Int) 8 718 2239
>> ( Trafford House (Ext) +44 (0)1268 702239
>> * <_mailto:manstis1 at ford.com_>
>>
>>
>>
------------------------------------------------------------------------
>>
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>> rules-users at lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/rules-users
>>
>>
>
>
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