[rules-users] BRMS Insurance Sample - Invalid Class Exception

I am seeing the same issue. My configuration is slightly different in that I am using Drools 4.0.3 and JBoss 4.2.2GA with Java 5. I have been searching very hard to find where these two different version of AbstractParser are coming from. This class comes out of the MVEL. The jar in the drools-jbrms is mvel14-1.2.10.jar. I only see this jar within the deployment. My thought is that a serialized version of the class is stored in a file somewhere in the demo project or the BRMS itself, and that it is from an older version mvel. -J --Original Message- Folks, Using BRMS 4.0.2 and examples 4.02 as downloaded from the 'official release' site. Working my way through the Drools Insurance Sample (on BRMS). I'm deploying BRMS successfully on JBoss 4.2.1 with Java 1.6.0_02. I can import the repository_export.xml ok and see the files. I leave this part of the sample running as per the instructions. When I go to the 2nd part of the example I have a problem running the unit tests: within /drools-examples/drools-insurance I run: mvn clean package. I get the error(1) at the bottom of this email. I do *not* get the output as per the documentaiton. I skip the tests, build and deploy the drools-insurance.war When deploying the war I see the following error (2) in the JBoss logs . However main drools insurance page loads ok as per the screenshot in the documentation): 22:43:13,576 INFO [WebappClassLoader] validateJarFile(C:\software\jboss-4-2-1\server\default\.\tmp\deploy\tmp2 6632drool s-insurance-exp.war\WEB-INF\lib\servlet-api-2.3.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class I enter some values in the web app (make sure there are no nulls) press 'continue' then get the same error (3) 22:48:55,294 ERROR [STDERR] java.io.InvalidClassException: org.mvel.AbstractParser; local class incompatible: stream cla ssdesc serialVersionUID = 256028721591955695, local class serialVersionUID = -7464517220700761297 22:48:55,310 ERROR [STDERR] at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:562) As an aside , when I look for the latest BRMS , as mentioned in the docs (http://cruisecontrol.jboss.com/cc/artifacts/jboss-rules) - I get a 'Invalid File or Directory' Is there anything I should try to resolve this? Paul RuleAgent(insuranceconfig) INFO (Thu Oct 18 22:37:44 BST 2007): Configuring package provider : URLScanner monitoring URL s: http://localhost:8080/drools-jbrms/org.drools.brms.JBRMS/package/org.acm e.insurance.base/InsuranceDemo RuleAgent(insuranceconfig) EXCEPTION (Thu Oct 18 22:37:45 BST 2007): org.mvel.AbstractParser; local class incompatible: stream classdesc serialVersionUID = 256028721591955695, local class serialVersionUID = -7464517220700761297. Stack trace should follow..io.ObjectStreamClass.initNonProxy(Unknown Source) java.io.InvalidClassException: org.mvel.AbstractParser; local class incompatible: stream classdesc serialVersionUID = 25 6028721591955695, local class serialVersionUID = -7464517220700761297 at java.io.ObjectStreamClass.initNonProxy(Unknown Source)rce) at java.io.ObjectInputStream.readNonProxyDesc(Unknown Source) at java.io.ObjectInputStream.readClassDesc(Unknown Source)urce) at java.io.ObjectInputStream.readNonProxyDesc(Unknown Source) at java.io.ObjectInputStream.readClassDesc(Unknown Source)rce) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source)Source) at java.io.ObjectInputStream.defaultReadFields(Unknown Source) at java.io.ObjectInputStream.readSerialData(Unknown Source)ce) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source)Source at java.io.ObjectInputStream.defaultReadFields(Unknown Source) at java.io.ObjectInputStream.readSerialData(Unknown Source)ce) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source)Source) at java.io.ObjectInputStream.defaultReadFields(Unknown Source) at java.io.ObjectInputStream.readSerialData(Unknown Source)ce) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source)Source) at java.io.ObjectInputStream.defaultReadFields(Unknown Source) at java.io.ObjectInputStream.readSerialData(Unknown Source) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source)ource) at java.io.ObjectInputStream.readObject(Unknown Source)own Source) at java.util.HashMap.readObject(Unknown Source)ce) at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source)known Source) at java.io.ObjectStreamClass.invokeReadObject(Unknown Source) at java.io.ObjectInputStream.readSerialData(Unknown Source) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source)urce) at java.io.ObjectInputStream.readObject(Unknown Source) Source) at org.drools.rule.Package.readExternal(Package.java:194) at java.io.ObjectInputStream.readExternalData(Unknown Source) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)java:54) at java.io.ObjectInputStream.readObject0(Unknown Source)va:137) at java.io.ObjectInputStream.readObject(Unknown Source)java:109) at org.drools.agent.HttpClientImpl.fetchPackage(HttpClientImpl.java:54) at org.drools.agent.URLScanner.readPackage(URLScanner.java:137)0) at org.drools.agent.URLScanner.getChangeSet(URLScanner.java:109)) at org.drools.agent.URLScanner.loadPackageChanges(URLScanner.java:88) at org.drools.agent.RuleAgent.checkForChanges(RuleAgent.java:330) at org.drools.agent.RuleAgent.refreshRuleBase(RuleAgent.java:298) at org.drools.agent.RuleAgent.configure(RuleAgent.java:284)48) at org.drools.agent.RuleAgent.init(RuleAgent.java:208)ava:216) at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:176)romRuleAgent( InsuranceSessionHelper.java:26) at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:148)suranceSessio nHelper.java:17) at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:216)ntalInfoTest. java:23) at org.acme.insurance.web.InsuranceSessionHelper.loadRuleBaseFromRuleAgent( InsuranceSessionHelper.java:26) at org.acme.insurance.web.InsuranceSessionHelper.getSession(InsuranceSessio nHelper.java:17) at org.acme.insurance.test.SupplementalInfoTest.setUp(SupplementalInfoTest. java:23) at junit.framework.TestCase.runBare(TestCase.java:125) at junit.framework.TestResult$1.protect(TestResult.java:106) at junit.framework.TestResult.runProtected(TestResult.java:124) at junit.framework.TestResult.run(TestResult.java:109) at junit.framework.TestCase.run(TestCase.java:118)tive Method) at junit.framework.TestSuite.runTest(TestSuite.java:208)ource) at junit.framework.TestSuite.run(TestSuite.java:203)nknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)estSet.java:210) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)uteTestSet(AbstractDirectoryTestSuite.java:135 at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.maven.surefire.junit.JUnitTestSet.execute(JUnitTestSet.java:2 10)DirectoryTestSuite.java:122) at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.executeTestSe t(AbstractDirectoryTestSuite.java:135 ) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.execute(Abstr actDirectoryTestSuite.java:122) at org.apache.maven.surefire.Surefire.run(Surefire.java:129)ource) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)Process(SurefireBooter.java:225) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)oter.java:747) at java.lang.reflect.Method.invoke(Unknown Source)psed: 0.671 sec <<< FAILURE! at org.apache.maven.surefire.booter.SurefireBooter.runSuitesInProcess(Suref ireBooter.java:225) at org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java :747) Tests run: 5, Failures: 0, Errors: 5, Skipped: 0, Time elapsed: 0.655 sec <<< FAILURE! Running org.acme.insurance.test.DriverTestped: 0, Time elapsed: 0 sec <<< FAILURE! Tests run: 7, Failures: 0, Errors: 7, Skipped: 0, Time elapsed: 0.016 sec <<< FAILURE! Running org.acme.insurance.test.DriverAdditionalInfoTestlapsed: 0.015 sec <<< FAILURE! Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.015 sec <<< FAILURE! Running org.acme.insurance.test.InsuranceCalculateTest Tests run: 3, Failures: 0, Errors: 3, Skipped: 0, Time elapsed: 0.016 sec <<< FAILURE!