which version of drools does the brms uses? am deserializing with the drools 4.0 version.. "Anstis, Michael (M.)" <manstis1(a)ford.com&gt; schrieb: Was the package serialised using a different version of Drools to which you are trying to deserialise it? --------------------------------- From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of vamshidhar reddy chitti Sent: 17 October 2007 11:18 To: rules-users(a)lists.jboss.org Subject: [rules-users] java.io.InvalidClassException: org.drools.rule.Package;local class incompatible: stream classdesc serialVersionUID = 400,local class serialVersionUID = 320 hello am using the binary package from drools brms and tying to execute BinaryRuleBaseLoader loader = new BinaryRuleBaseLoader(); loader.addPackage( DroolsTest.class.getResourceAsStream( "com.valuemomentum.ipru.camscontract.model.pkg" ) ); RuleBase rb = loader.getRuleBase(); but i get the following errors, org.drools.RuntimeDroolsException: java.io.InvalidClassException: org.drools.rule.Package; local class incompatible: stream classdesc serialVersionUID = 400, local class serialVersionUID = 320 at org.drools.util.BinaryRuleBaseLoader.addPackage(BinaryRuleBaseLoader.java:100) at org.drools.util.BinaryRuleBaseLoader.addPackage(BinaryRuleBaseLoader.java:67) at com.sample.DroolsTest.readRule(DroolsTest.java:59) at com.sample.DroolsTest.main(DroolsTest.java:28) Caused by: java.io.InvalidClassException: org.drools.rule.Package; local class incompatible: stream classdesc serialVersionUID = 400, local class serialVersionUID = 320 at java.io.ObjectStreamClass.initNonProxy(Unknown Source) at java.io.ObjectInputStream.readNonProxyDesc(Unknown Source) at java.io.ObjectInputStream.readClassDesc(Unknown Source) at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source) at java.io.ObjectInputStream.readObject0(Unknown Source) at java.io.ObjectInputStream.readObject(Unknown Source) at org.drools.util.BinaryRuleBaseLoader.addPackage(BinaryRuleBaseLoader.java:82) ... 3 more i tried replacing mvel jar file with mvel-snapshot jar file...but same error... anyone has idea. how to use absolute path in my application instead downloading binary package and using. thanx in advance. vamshi --------------------------------- Yahoo! Clever - Sie haben Fragen? Yahoo! Nutzer antworten Ihnen. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users --------------------------------- Jetzt Mails schnell in einem Vorschaufenster überfliegen. Dies und viel mehr bietet das neue Yahoo! Mail.