[rules-users] Error when deploying rules using RuleAgent

I'm serializing Package object of my rules so i could deploy it, but i am having following error: org.drools.RuntimeDroolsException: org.drools.RuntimeDroolsException: ClassFieldExtractorFactory cannot have a null parent ClassLoader at org.drools.base.ClassFieldExtractor.init(ClassFieldExtractor.java:82) at org.drools.base.ClassFieldExtractor.<init>(ClassFieldExtractor.java:58) at org.drools.base.ClassFieldExtractorCache.getExtractor(ClassFieldExtractorCache.java:35) at org.drools.base.ClassFieldExtractor.readResolve(ClassFieldExtractor.java:73) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at java.io.ObjectStreamClass.invokeReadResolve(ObjectStreamClass.java:1061) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1762) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351) at java.util.ArrayList.readObject(ArrayList.java:593) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1846) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1667) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351) at java.util.HashMap.readObject(HashMap.java:1029) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1846) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351) at org.drools.rule.PackageCompilationData.readExternal(PackageCompilationData.java:151) at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1792) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1751) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351) at org.drools.rule.Package.readExternal(Package.java:174) at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1792) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1751) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351) at org.drools.agent.FileScanner.readPackage(FileScanner.java:97) at org.drools.agent.FileScanner.getChangeSet(FileScanner.java:79) at org.drools.agent.FileScanner.loadPackageChanges(FileScanner.java:57) at org.drools.agent.DirectoryScanner.loadPackageChanges(DirectoryScanner.java:43) at org.drools.agent.RuleAgent.checkForChanges(RuleAgent.java:327) at org.drools.agent.RuleAgent.refreshRuleBase(RuleAgent.java:295) at org.drools.agent.RuleAgent.configure(RuleAgent.java:281) at org.drools.agent.RuleAgent.init(RuleAgent.java:205) at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:173) at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:145) at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:213) Anyone has idea what could be the error. edit: i've check my drl source, and it's working, but when i try to serizliaze, and using it with RuleAgent, this error occurs. Kind regards! -- View this message in context: http://www.nabble.com/Error-when-deploying-rules-using-RuleAgent-tf464626... Sent from the drools - user mailing list archive at Nabble.com.