Thanks Bruno, I have now fixed the NoClassDefFoundError, any ideas about the NullPointer one?
Best Regards, Kevin Zhao 2010/10/20 Bruno Freudensprung <bruno.freudenspr...@temis.com> > > Hello, > > I think you have to add the xstream jar to your classpath. > Here is the Maven dependency : > > <dependency> > <groupId>com.thoughtworks.xstream</groupId> > <artifactId>xstream</artifactId> > <version>1.3.1</version> > </dependency> > > Best regards, > > Bruno. > > > 赵侃侃 a écrit : > > Hello, > > I checked out the latest source from svn repository. It compiled OK and > imported the example projects to my eclipse workspace but the examples run > with error. > The two example projects are namely drools-examples-drl > & drools-examples-fusion. > > org.drools.examples.pacman.Main gives the errors: > > Exception in thread "main" java.lang.NoClassDefFoundError: > com/thoughtworks/xstream/XStream > at > org.drools.audit.KnowledgeRuntimeLoggerProviderImpl.newThreadedFileLogger(KnowledgeRuntimeLoggerProviderImpl.java:34) > at > org.drools.logger.KnowledgeRuntimeLoggerFactory.newThreadedFileLogger(KnowledgeRuntimeLoggerFactory.java:69) > at org.drools.examples.pacman.Main.initKsession(Main.java:88) > at org.drools.examples.pacman.Main.main(Main.java:39) > Caused by: java.lang.ClassNotFoundException: > com.thoughtworks.xstream.XStream > at java.net.URLClassLoader$1.run(Unknown Source) > at java.security.AccessController.doPrivileged(Native Method) > at java.net.URLClassLoader.findClass(Unknown Source) > at java.lang.ClassLoader.loadClass(Unknown Source) > at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) > at java.lang.ClassLoader.loadClass(Unknown Source) > ... 4 more > > > org.drools.examples.broker.Main gives the errors: > > java.lang.NullPointerException > at > org.drools.compiler.PackageBuilder.addProcessFromXml(PackageBuilder.java:432) > at > org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:468) > at > org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:28) > at org.drools.examples.broker.Broker.loadRuleBase(Broker.java:95) > at org.drools.examples.broker.Broker.createSession(Broker.java:80) > at org.drools.examples.broker.Broker.<init>(Broker.java:57) > at org.drools.examples.broker.Main.main(Main.java:53) > > Does anyone experience the similar issues and know how to fix that? > > Best Regards, > Kevin > > ------------------------------ > > _______________________________________________ > rules-users mailing > listrules-us...@lists.jboss.orghttps://lists.jboss.org/mailman/listinfo/rules-users > > > > _______________________________________________ > rules-users mailing list > rules-users@lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > >
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