[rules-users] serialVersionUID incompatibility with MVELDialectRuntimeData when using Guvnor 5.0CR1

[山本 裕介]

Hi,

I'm evaluating Guvnor 5.0CR1 and having problem when the  
MortgageApplicationTest example.
It just fails with InvalidClassException, saying that serialVersionUID  
of MVELDialectRuntimeData are different.
That doesn't make sense to me because I'm using absolute paths to  
point the server side jars.

The version I'm using is "Drools 5.0.0.CR1 Guvnor Standalone".

$ java -Dfile.encoding=UTF-8 -classpath /Users/yusukey/jbproject/ 
droolstest/target/classes:/Users/yusukey/jboss-eap-4.3cp03/server/ 
default/deploy/drools-guvnor.war/WEB-INF/lib/drools- 
core-5.0.0.CR1.jar:/Users/yusukey/jboss-eap-4.3cp03/server/default/ 
deploy/drools-guvnor.war/WEB-INF/lib/drools-api-5.0.0.CR1.jar:/Users/ 
yusukey/jboss-eap-4.3cp03/server/default/deploy/drools-guvnor.war/WEB- 
INF/lib/mvel2-2.0.8pre1.jar  com.notidiots.MortgageApplicationTest
RuleAgent(MyConfig) INFO (Sat Mar 14 11:06:13 JST 2009): Configuring  
with newInstance=true, secondsToRefresh=30
RuleAgent(MyConfig) INFO (Sat Mar 14 11:06:13 JST 2009): Configuring  
package provider : URLScanner monitoring URLs:  http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/mortgages/TEST
RuleAgent(MyConfig) EXCEPTION (Sat Mar 14 11:06:25 JST 2009):  
org.drools.rule.MVELDialectRuntimeData; local class incompatible:  
stream classdesc serialVersionUID = -3277457858074244250, local class  
serialVersionUID = 6582893639473442227. Stack trace should follow.
java.io.InvalidClassException: org.drools.rule.MVELDialectRuntimeData;  
local class incompatible: stream classdesc serialVersionUID =  
-3277457858074244250, local class serialVersionUID = 6582893639473442227

One thing I may need to mention is that I needed to change one single  
line to compile MortgageApplicationTest.java as following:
----------------
- import org.drools.rule.FactType;
+ import org.drools.definition.type.FactType;
----------------

Any idea why?

I'm attaching the full stack trace.

Cheers,
Yusuke
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