Hi, I'm facing the same problem.
The following code works fine if i know upfront wht the object should be: ObjectMapper mapper = new ObjectMapper(); FactType type = kbase.getFactType("eu.mc2bis.events", "DeviceEventDeclared"); System.out.println ("Actual type:" + type.getFactClass() ); Object event; try { event = mapper.readValue(arg2, type.getFactClass()); session.insert(event); session.fireAllRules(); } catch (JsonParseException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (JsonMappingException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } So actually this means that the class is available from the classloader now when i do the same using BatchExecutionHelper.newJSonMarshaller() i get a .the following exception: Exception in thread "main" com.thoughtworks.xstream.converters.ConversionException: eu.mc2bis.events.DeviceEventDeclared : eu.mc2bis.events.DeviceEventDeclared ---- Debugging information ---- message : eu.mc2bis.events.DeviceEventDeclared cause-exception : com.thoughtworks.xstream.mapper.CannotResolveClassException cause-message : eu.mc2bis.events.DeviceEventDeclared class : org.drools.command.runtime.rule.InsertObjectCommand required-type : org.drools.command.runtime.rule.InsertObjectCommand converter-type : org.drools.runtime.help.impl.XStreamJSon$JSonInsertConverter line number : -1 class[1] : org.drools.command.runtime.BatchExecutionCommandImpl converter-type[1] : org.drools.runtime.help.impl.XStreamJSon$JSonBatchExecutionCommandConverter version : null Any help would be appreciated, Regards, e -- View this message in context: http://drools.46999.n3.nabble.com/Inserting-Facts-from-Json-Format-tp3570810p4018491.html Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users