Re: [rules-dev] Problems when using drools-server

Hi All, When I access the drools-server by URLConnection, I've always got such errors: WARNING: RuleAgent(default) EXCEPTION (Mon Feb 02 16:09:46 CST 2009): org.drools.base.BaseEvaluator; local class incompatible: stream classdesc serialVersionUID = -7767879457606879276, local class serialVersionUID = -7149415669283058142. Stack trace should follow. WARNING: java.io.InvalidClassException: org.drools.base.BaseEvaluator; local class incompatible: stream classdesc serialVersionUID = -7767879457606879276, local class serialVersionUID = -7149415669283058142 * at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:562)* * at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1583)* * at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1496)* * at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1583)* * at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1496)* * at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1732)* * at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)* * at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)* * at org.drools.rule.LiteralRestriction.readExternal(LiteralRestriction.java:66) * * 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.LiteralConstraint.readExternal(LiteralConstraint.java:67)* * 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 java.util.ArrayList.readObject(ArrayList.java:593)* * at sun.reflect.GeneratedMethodAccessor28.invoke(Unknown Source)* * 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:1849)* * 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.Pattern.readExternal(Pattern.java:115) * * 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 java.util.ArrayList.readObject(ArrayList.java:593)* * at sun.reflect.GeneratedMethodAccessor28.invoke(Unknown Source)* * 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:1849)* * 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.GroupElement.readExternal(GroupElement.java:57)* * 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.Rule.readExternal(Rule.java:170)* * 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 java.util.HashMap.readObject(HashMap.java:1029)* * at sun.reflect.GeneratedMethodAccessor17.invoke(Unknown Source)* * 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:1849)* * 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.MVELDialectRuntimeData.readExternal(MVELDialectRuntimeData.java:42) * * 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 java.util.HashMap.readObject(HashMap.java:1030)* * at sun.reflect.GeneratedMethodAccessor17.invoke(Unknown Source)* * 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:1849)* * 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.DialectRuntimeRegistry.readExternal(DialectRuntimeRegistry.java:41) * * 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:197) * * 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.util.DroolsStreamUtils.streamIn(DroolsStreamUtils.java:189)* * at org.drools.util.DroolsStreamUtils.streamIn(DroolsStreamUtils.java:158)* * at org.drools.agent.HttpClientImpl.fetchPackage(HttpClientImpl.java:47)* * at org.drools.agent.URLScanner.readPackage(URLScanner.java:148)* * at org.drools.agent.URLScanner.getChangeSet(URLScanner.java:120)* * at org.drools.agent.URLScanner.loadPackageChanges(URLScanner.java:96)* * at org.drools.agent.RuleAgent.checkForChanges(RuleAgent.java:410)* * at org.drools.agent.RuleAgent.refreshRuleBase(RuleAgent.java:362)* * at org.drools.agent.RuleAgent.configure(RuleAgent.java:347)* * at org.drools.agent.RuleAgent.init(RuleAgent.java:247)* * at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:187)* * at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:147)* * at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:256)* * at org.drools.server.KnowledgeStatelessServlet.getRuleBase(KnowledgeStatelessServlet.java:109) * * at org.drools.server.KnowledgeStatelessServlet.doPost(KnowledgeStatelessServlet.java:71) * * **at javax.servlet.http.HttpServlet.service(HttpServlet.java:738)* * at javax.servlet.http.HttpServlet.service(HttpServlet.java:831)* * **at org.apache.catalina.core.ApplicationFilterChain.servletService(ApplicationFilterChain.java:411) * * at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:317) * * at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:198) * * **at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:390) * * at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230) * * **at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:198) * * at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:288) * * at * WARNING: org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:271) * at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:202) * * at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632) * * at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577) * * at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:94)* * at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:206) * * at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632) * * at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577) * * at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:571) * * at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1080)* * at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:150) * * at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632) * * at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577) * * **at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:571) * * at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1080)* * at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:272)* * at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.invokeAdapter(DefaultProcessorTask.java:637) * * at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.doProcess(DefaultProcessorTask.java:568) * * at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.process(DefaultProcessorTask.java:813) * * at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.executeProcessorTask(DefaultReadTask.java:341) * * at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:263) * * at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:214) * * at com.sun.enterprise.web.portunif.PortUnificationPipeline$PUTask.doTask(PortUnificationPipeline.java:380) * * at com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:265)* * at com.sun.enterprise.web.connector.grizzly.ssl.SSLWorkerThread.run(SSLWorkerThread.java:106) * WARNING: java.lang.NullPointerException * at org.drools.agent.RuleAgent.refreshRuleBase(RuleAgent.java:363)* * at org.drools.agent.RuleAgent.configure(RuleAgent.java:347)* * at org.drools.agent.RuleAgent.init(RuleAgent.java:247)* * at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:187)* * at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:147)* * at org.drools.agent.RuleAgent.newRuleAgent(RuleAgent.java:256)* * at org.drools.server.KnowledgeStatelessServlet.getRuleBase(KnowledgeStatelessServlet.java:109) * * at org.drools.server.KnowledgeStatelessServlet.doPost(KnowledgeStatelessServlet.java:71) * * **at javax.servlet.http.HttpServlet.service(HttpServlet.java:738)* * at javax.servlet.http.HttpServlet.service(HttpServlet.java:831)* * **at org.apache.catalina.core.ApplicationFilterChain.servletService(ApplicationFilterChain.java:411) * * at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:317) * * at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:198) * * at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:390) * * at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230) * * at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:198) * * at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:288) * * at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:271) * * at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:202) * * at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632) * * at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577) * * at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:94)* * at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:206) * * at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632) * * at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577) * * at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:571) * * at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1080)* * at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:150) * * at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632) * * at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577) * * at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:571) * * at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1080)* * at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:272)* * at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.invokeAdapter(DefaultProcessorTask.java:637) * * at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.doProcess(DefaultProcessorTask.java:568) * * at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.process(DefaultProcessorTask.java:813) * * at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.executeProcessorTask(DefaultReadTask.java:341) * * at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:263) * * at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:214) * * at com.sun.enterprise.web.portunif.PortUnificationPipeline$PUTask.doTask(PortUnificationPipeline.java:380) * * at com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:265)* * at com.sun.enterprise.web.connector.grizzly.ssl.SSLWorkerThread.run(SSLWorkerThread.java:106) * Can anyone help me to fix this problem? I've got the same errors when trying to run KnowledgeServiceServletTest.java from the drool-server source code. Thanks, Jing _______________________________________________ rules-dev mailing list rules-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-dev