[rules-users] 3.1-M1: java.lang.VerifyError: Shadow Fact problem?

[Anstis, Michael (M.)]

Hi,

It never rains it pours!

Given a very simple rule:-

package drools.debug

rule "Test1"
when
	$m : Machine ( )
then
	System.out.println("--> DEBUG!");
end

Throws a very unfriendly error:-

Exception in thread "main" java.lang.VerifyError: (class:
drools/debug/MachineShadowProxy, method: setProperty signature:
(Ljava/lang/String;JLjava/lang/String;)V) Register 3 contains wrong type
	at java.lang.Class.getDeclaredConstructors0(Native Method)
	at java.lang.Class.privateGetDeclaredConstructors(Unknown
Source)
	at java.lang.Class.getConstructor0(Unknown Source)
	at java.lang.Class.getConstructor(Unknown Source)
	at
org.drools.base.ClassObjectType.getShadow(ClassObjectType.java:123)
	at
org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:148)
	at org.drools.reteoo.Rete.assertObject(Rete.java:121)
	at
org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:196)
	at
org.drools.reteoo.ReteooWorkingMemory.doAssertObject(ReteooWorkingMemory
.java:68)
	at
org.drools.common.AbstractWorkingMemory.assertObject(AbstractWorkingMemo
ry.java:724)
	at
org.drools.common.AbstractWorkingMemory.assertObject(AbstractWorkingMemo
ry.java:543)
	at drools.debug.Setup.main(Setup.java:42)

The Machine Class does extend another that has assessors for a Class
that has lots and lots of constructors...

Complete, self contained JAR, file available on request (a new JIRA?)

Thanks,

Mike

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