Re: [rules-dev] Drools and GWT Application integration

The project requires 1.7.2 -api and -ext On Wed, Sep 11, 2013 at 12:27 PM, Moses Kalema <mkgremo20(a)gmail.com&gt;wrote: > Build path and class path. version 1.7.5.Do i have to add all other jars > in the package? > > > On Wed, Sep 11, 2013 at 2:20 PM, Mauricio Salatino <salaboy(a)gmail.com&gt;wrote: > >> Where did you add it? which version? >> >> >> On Wed, Sep 11, 2013 at 12:02 PM, Moses Kalema <mkgremo20(a)gmail.com&gt;wrote: >> >>> I have added it but still get the same error.I can even import that >>> class in my code. >>> >>> >>> >>> >>> >>> >>> com.google.gwt.user.server.rpc.UnexpectedException: Service method 'public abstract com.planet.requisition.client.rules.RequisitionTemp com.planet.requisition.client.rules.RequisitionTempService.getRequisitionDet(java.lang.String,int)' threw an unexpected exception: java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory >>> >>> >>> >>> >>> >>> >>> at com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure(RPC.java:385) >>> at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:588) >>> at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208) >>> >>> >>> >>> >>> >>> >>> at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248) >>> at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62) >>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) >>> >>> >>> >>> >>> >>> >>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) >>> at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) >>> at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362) >>> >>> >>> >>> >>> >>> >>> at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) >>> at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) >>> at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:729) >>> >>> >>> >>> >>> >>> >>> at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) >>> at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >>> at org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:49) >>> >>> >>> >>> >>> >>> >>> at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >>> at org.mortbay.jetty.Server.handle(Server.java:324) >>> at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505) >>> at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:843) >>> >>> >>> >>> >>> >>> >>> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:647) >>> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) >>> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380) >>> at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395) >>> >>> >>> >>> >>> >>> >>> at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488) >>> Caused by: java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory >>> at org.drools.util.ServiceRegistryImpl.<clinit>(ServiceRegistryImpl.java:55) >>> >>> >>> >>> >>> >>> >>> at org.drools.builder.KnowledgeBuilderFactory.loadServiceFactory(KnowledgeBuilderFactory.java:130) >>> at org.drools.builder.KnowledgeBuilderFactory.getKnowledgeBuilderServiceFactory(KnowledgeBuilderFactory.java:124) >>> >>> >>> >>> >>> >>> >>> at org.drools.builder.KnowledgeBuilderFactory.newKnowledgeBuilder(KnowledgeBuilderFactory.java:46) >>> at com.planet.requisition.server.RequisitionTempServiceImpl.getRequisitionDet(RequisitionTempServiceImpl.java:49) >>> >>> >>> >>> >>> >>> >>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >>> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) >>> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) >>> at java.lang.reflect.Method.invoke(Unknown Source) >>> >>> >>> >>> >>> >>> >>> at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:569) >>> at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208) >>> at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248) >>> >>> >>> >>> >>> >>> >>> at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62) >>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) >>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) >>> >>> >>> >>> >>> >>> >>> at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) >>> at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362) >>> at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) >>> >>> >>> >>> >>> >>> >>> at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) >>> at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:729) >>> at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) >>> >>> >>> >>> >>> >>> >>> at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >>> at org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:49) >>> at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >>> >>> >>> >>> >>> >>> >>> at org.mortbay.jetty.Server.handle(Server.java:324) >>> at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505) >>> at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:843) >>> >>> >>> >>> >>> >>> >>> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:647) >>> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) >>> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380) >>> at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395) >>> >>> >>> >>> >>> >>> >>> at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488) >>> Caused by: java.lang.ClassNotFoundException: org.slf4j.LoggerFactory >>> at java.net.URLClassLoader$1.run(Unknown Source) >>> at java.security.AccessController.doPrivileged(Native Method) >>> >>> >>> >>> >>> >>> >>> at java.net.URLClassLoader.findClass(Unknown Source) >>> at com.google.gwt.dev.shell.jetty.JettyLauncher$WebAppContextWithReload$WebAppClassLoaderExtension.findClass(JettyLauncher.java:372) >>> at org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:366) >>> >>> >>> >>> >>> >>> >>> at org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:337) >>> at org.drools.util.ServiceRegistryImpl.<clinit>(ServiceRegistryImpl.java:55) >>> at org.drools.builder.KnowledgeBuilderFactory.loadServiceFactory(KnowledgeBuilderFactory.java:130) >>> >>> >>> >>> >>> >>> >>> at org.drools.builder.KnowledgeBuilderFactory.getKnowledgeBuilderServiceFactory(KnowledgeBuilderFactory.java:124) >>> at org.drools.builder.KnowledgeBuilderFactory.newKnowledgeBuilder(KnowledgeBuilderFactory.java:46) >>> >>> >>> >>> >>> >>> at com.planet.requisition.server.RequisitionTempServiceImpl.getRequisitionDet(RequisitionTempServiceImpl.java:49) >>> >>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >>> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) >>> >>> >>> >>> >>> >>> >>> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) >>> at java.lang.reflect.Method.invoke(Unknown Source) >>> at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:569) >>> at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208) >>> >>> >>> >>> >>> >>> >>> at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248) >>> at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62) >>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) >>> >>> >>> >>> >>> >>> >>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) >>> at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) >>> at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362) >>> >>> >>> >>> >>> >>> >>> at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) >>> at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) >>> at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:729) >>> >>> >>> >>> >>> >>> >>> at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) >>> at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >>> at org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:49) >>> >>> >>> >>> >>> >>> >>> at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >>> at org.mortbay.jetty.Server.handle(Server.java:324) >>> at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505) >>> at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:843) >>> >>> >>> >>> >>> >>> >>> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:647) >>> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) >>> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380) >>> at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395) >>> >>> >>> >>> >>> >>> >>> at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488) >>> >>> >>> >>> On Wed, Sep 11, 2013 at 1:05 PM, Mauricio Salatino <salaboy(a)gmail.com&gt;wrote: >>> >>>> If you are using maven you will need to add the dependency to your pom >>>> file.. if not you will need to get the jar from somewhere.. like here for >>>> example: http://slf4j.org >>>> >>>> >>>> On Wed, Sep 11, 2013 at 11:01 AM, Moses Kalema <mkgremo20(a)gmail.com&gt;wrote: >>>> >>>>> Where can i get? >>>>> >>>>> >>>>> On Wed, Sep 11, 2013 at 12:53 PM, Mauricio Salatino < >>>>> salaboy(a)gmail.com&gt; wrote: >>>>> >>>>>> Ok, so the error is pretty clear: java.lang.NoClassDefFoundError: >>>>>> org/slf4j/LoggerFactory >>>>>> >>>>>> You need to add that to your class path >>>>>> >>>>>> >>>>>> On Wed, Sep 11, 2013 at 10:51 AM, Moses Kalema <mkgremo20(a)gmail.com&gt;wrote: >>>>>> >>>>>>> In my serviceImplementation[in the server package] class in GWT RPC >>>>>>> When i try to check the execution the system doesn't run this line: >>>>>>> KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder(); >>>>>>> >>>>>>> KnowledgeBuilder kbuilder = >>>>>>> KnowledgeBuilderFactory.newKnowledgeBuilder(); >>>>>>> //inputStream = >>>>>>> this.getClass().getClassLoader().getResourceAsStream("ChangeSet.xml"); >>>>>>> url= >>>>>>> this.getClass().getClassLoader().getResource("ChangeSet.xml"); >>>>>>> workingDirectory = System.getProperty("user.dir"); >>>>>>> System.out.println("URL "+url); >>>>>>> file = new File(workingDirectory +"/src/ChangeSet.xml"); >>>>>>> if(file.exists()){ >>>>>>> System.out.println("Directory "+file.getName()); >>>>>>> } >>>>>>> else{ >>>>>>> System.out.println("File not seen"); >>>>>>> } >>>>>>> kbuilder.add( >>>>>>> ResourceFactory.newUrlResource(url),ResourceType.CHANGE_SET); >>>>>>> if( kbuilder.hasErrors() ) { >>>>>>> >>>>>>> System.out.println( kbuilder.getErrors() ); >>>>>>> System.out.println("The changeset file has errors"); >>>>>>> // return; >>>>>>> }else{ >>>>>>> System.out.println("The changeset has no errors"); >>>>>>> } >>>>>>> >>>>>>> KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase(); >>>>>>> System.out.println("knowledgebase has been created"); >>>>>>> >>>>>>> KnowledgeAgent kagent = KnowledgeAgentFactory.newKnowledgeAgent( >>>>>>> "MyAgent" ); >>>>>>> // URL url = getClass().getResource("ChangeSet.xml"); >>>>>>> // File file = new File(url.getPath()); >>>>>>> kagent.applyChangeSet( ResourceFactory.newUrlResource(url) ); >>>>>>> kbase = kagent.getKnowledgeBase(); >>>>>>> ResourceFactory.getResourceChangeNotifierService().start(); >>>>>>> ResourceFactory.getResourceChangeScannerService().start(); >>>>>>> System.out.println("knowledge agent created"); >>>>>>> >>>>>>> StatefulKnowledgeSession ksession = >>>>>>> kbase.newStatefulKnowledgeSession(); >>>>>>> System.out.println("session created"); >>>>>>> FactType factType = kbase.getFactType("procnet.requisition.test", >>>>>>> "requisition"); >>>>>>> try { >>>>>>> Object obj = factType.newInstance(); >>>>>>> factType.set(obj, "requisitionType", requisitionType); >>>>>>> factType.set(obj, "totalCost", totalCost); >>>>>>> FactHandle objHandle = ksession.insert(obj); >>>>>>> ksession.fireAllRules(); >>>>>>> System.out.println(factType.get(obj, "approvalMessage")); >>>>>>> approvalMessage = (String) factType.get(obj, "approvalMessage"); >>>>>>> //System.out.println(factType.get(obj, "name")); >>>>>>> } catch (InstantiationException e) { >>>>>>> e.printStackTrace(); >>>>>>> } catch (IllegalAccessException e) { >>>>>>> e.printStackTrace(); >>>>>>> } >>>>>>> return approvalMessage; >>>>>>> This is the exact code i use in a normal java application and it >>>>>>> works fine,infact even when i run the class as a java application it >>>>>>> returns the approve message from guvnor. >>>>>>> I find this strange >>>>>>> This is the error am getting, >>>>>>> 02:19:43.040 [WARN] Exception while dispatching incoming >>>>>>> RPC call >>>>>>> >>>>>>> com.google.gwt.user.server.rpc.UnexpectedException: Service method 'public abstract com.planet.requisition.client.rules.RequisitionTemp com.planet.requisition.client.rules.RequisitionTempService.getRequisitionDet(java.lang.String,int)' threw an unexpected exception: java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure(RPC.java:385) >>>>>>> at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:588) >>>>>>> at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248) >>>>>>> at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62) >>>>>>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) >>>>>>> at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) >>>>>>> at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) >>>>>>> at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) >>>>>>> at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:729) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) >>>>>>> at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >>>>>>> at org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:49) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >>>>>>> at org.mortbay.jetty.Server.handle(Server.java:324) >>>>>>> at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505) >>>>>>> at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:843) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:647) >>>>>>> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) >>>>>>> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380) >>>>>>> at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488) >>>>>>> Caused by: java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory >>>>>>> at org.drools.util.ServiceRegistryImpl.<clinit>(ServiceRegistryImpl.java:55) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at org.drools.builder.KnowledgeBuilderFactory.loadServiceFactory(KnowledgeBuilderFactory.java:130) >>>>>>> at org.drools.builder.KnowledgeBuilderFactory.getKnowledgeBuilderServiceFactory(KnowledgeBuilderFactory.java:124) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at org.drools.builder.KnowledgeBuilderFactory.newKnowledgeBuilder(KnowledgeBuilderFactory.java:46) >>>>>>> at com.requisition.RequisitionApproval.main(RequisitionApproval.java:35) >>>>>>> at com.requisition.TestInputStream.main(TestInputStream.java:22) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at com.planet.requisition.server.RequisitionTempServiceImpl.getRequisitionDet(RequisitionTempServiceImpl.java:37) >>>>>>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >>>>>>> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) >>>>>>> at java.lang.reflect.Method.invoke(Unknown Source) >>>>>>> at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:569) >>>>>>> at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248) >>>>>>> at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62) >>>>>>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) >>>>>>> at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) >>>>>>> at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) >>>>>>> at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) >>>>>>> at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:729) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) >>>>>>> at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >>>>>>> at org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:49) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >>>>>>> at org.mortbay.jetty.Server.handle(Server.java:324) >>>>>>> at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505) >>>>>>> at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:843) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:647) >>>>>>> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) >>>>>>> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380) >>>>>>> at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488) >>>>>>> Caused by: java.lang.ClassNotFoundException: org.slf4j.LoggerFactory >>>>>>> at java.net.URLClassLoader$1.run(Unknown Source) >>>>>>> at java.security.AccessController.doPrivileged(Native Method) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at java.net.URLClassLoader.findClass(Unknown Source) >>>>>>> at com.google.gwt.dev.shell.jetty.JettyLauncher$WebAppContextWithReload$WebAppClassLoaderExtension.findClass(JettyLauncher.java:372) >>>>>>> at org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:366) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at org.mortbay.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:337) >>>>>>> at org.drools.util.ServiceRegistryImpl.<clinit>(ServiceRegistryImpl.java:55) >>>>>>> at org.drools.builder.KnowledgeBuilderFactory.loadServiceFactory(KnowledgeBuilderFactory.java:130) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at org.drools.builder.KnowledgeBuilderFactory.getKnowledgeBuilderServiceFactory(KnowledgeBuilderFactory.java:124) >>>>>>> at org.drools.builder.KnowledgeBuilderFactory.newKnowledgeBuilder(KnowledgeBuilderFactory.java:46) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at com.requisition.RequisitionApproval.main(RequisitionApproval.java:35) >>>>>>> at com.requisition.TestInputStream.main(TestInputStream.java:22) >>>>>>> at com.planet.requisition.server.RequisitionTempServiceImpl.getRequisitionDet(RequisitionTempServiceImpl.java:37) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >>>>>>> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) >>>>>>> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) >>>>>>> at java.lang.reflect.Method.invoke(Unknown Source) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:569) >>>>>>> at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208) >>>>>>> at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62) >>>>>>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) >>>>>>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) >>>>>>> at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362) >>>>>>> at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) >>>>>>> at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:729) >>>>>>> at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >>>>>>> at org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:49) >>>>>>> at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at org.mortbay.jetty.Server.handle(Server.java:324) >>>>>>> at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505) >>>>>>> at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:843) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:647) >>>>>>> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) >>>>>>> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380) >>>>>>> at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488) >>>>>>> >>>>>>> >>>>>>> >>>>>>> On Wed, Sep 11, 2013 at 11:11 AM, Mauricio Salatino < >>>>>>> salaboy(a)gmail.com&gt; wrote: >>>>>>> >>>>>>>> Hi, we are using GWT and Drools in all our tooling.. For example >>>>>>>> if you take a look at the kie-wb workbench or the jbpm-console-ng they are >>>>>>>> create Knowledge Session (kie sessions) right now. >>>>>>>> >>>>>>>> >>>>>>>> On Wed, Sep 11, 2013 at 9:07 AM, Moses Kalema <mkgremo20(a)gmail.com >>>>>>>> > wrote: >>>>>>>> >>>>>>>>> Hello everyone, >>>>>>>>> I recently started using Drools Guvnor and i find it necessary. I >>>>>>>>> create rules on Guvnor and fire the rules in a Java application and >>>>>>>>> everything is fine. >>>>>>>>> However when i try to access the rules in a GWT application,i get >>>>>>>>> an error which looks like none of the Drools code is executed. >>>>>>>>> My request is if any one has used rules n a GWT application >>>>>>>>> please help me out >>>>>>>>> >>>>>>>>> -- >>>>>>>>> Moses Kalema >>>>>>>>> Bachelor Science in Computer Engineering >>>>>>>>> Software/Mobile/Embedded Systems Developer >>>>>>>>> +256773391723 >>>>>>>>> +256704209937 >>>>>>>>> Skype: mkgremo >>>>>>>>> Twitter: @mkgremo >>>>>>>>> "Life's Success is based on Opportunity not Chance" >>>>>>>>> >>>>>>>>> >>>>>>>>> _______________________________________________ >>>>>>>>> rules-dev mailing list >>>>>>>>> rules-dev(a)lists.jboss.org >>>>>>>>> https://lists.jboss.org/mailman/listinfo/rules-dev >>>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> -- >>>>>>>> - MyJourney @ http://salaboy.com <http://salaboy.wordpress.com> >>>>>>>> - Co-Founder @ http://www.jugargentina.org >>>>>>>> - Co-Founder @ http://www.jbug.com.ar >>>>>>>> >>>>>>>> - Salatino "Salaboy" Mauricio - >>>>>>>> >>>>>>>> _______________________________________________ >>>>>>>> rules-dev mailing list >>>>>>>> rules-dev(a)lists.jboss.org >>>>>>>> https://lists.jboss.org/mailman/listinfo/rules-dev >>>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> Moses Kalema >>>>>>> Bachelor Science in Computer Engineering >>>>>>> Software/Mobile/Embedded Systems Developer >>>>>>> +256773391723 >>>>>>> +256704209937 >>>>>>> Skype: mkgremo >>>>>>> Twitter: @mkgremo >>>>>>> "Life's Success is based on Opportunity not Chance" >>>>>>> >>>>>>> >>>>>>> _______________________________________________ >>>>>>> rules-dev mailing list >>>>>>> rules-dev(a)lists.jboss.org >>>>>>> https://lists.jboss.org/mailman/listinfo/rules-dev >>>>>>> >>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> - MyJourney @ http://salaboy.com <http://salaboy.wordpress.com> >>>>>> - Co-Founder @ http://www.jugargentina.org >>>>>> - Co-Founder @ http://www.jbug.com.ar >>>>>> >>>>>> - Salatino "Salaboy" Mauricio - >>>>>> >>>>>> _______________________________________________ >>>>>> rules-dev mailing list >>>>>> rules-dev(a)lists.jboss.org >>>>>> https://lists.jboss.org/mailman/listinfo/rules-dev >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> Moses Kalema >>>>> Bachelor Science in Computer Engineering >>>>> Software/Mobile/Embedded Systems Developer >>>>> +256773391723 >>>>> +256704209937 >>>>> Skype: mkgremo >>>>> Twitter: @mkgremo >>>>> "Life's Success is based on Opportunity not Chance" >>>>> >>>>> >>>>> _______________________________________________ >>>>> rules-dev mailing list >>>>> rules-dev(a)lists.jboss.org >>>>> https://lists.jboss.org/mailman/listinfo/rules-dev >>>>> >>>> >>>> >>>> >>>> -- >>>> - MyJourney @ http://salaboy.com <http://salaboy.wordpress.com> >>>> - Co-Founder @ http://www.jugargentina.org >>>> - Co-Founder @ http://www.jbug.com.ar >>>> >>>> - Salatino "Salaboy" Mauricio - >>>> >>>> _______________________________________________ >>>> rules-dev mailing list >>>> rules-dev(a)lists.jboss.org >>>> https://lists.jboss.org/mailman/listinfo/rules-dev >>>> >>> >>> >>> >>> -- >>> Moses Kalema >>> Bachelor Science in Computer Engineering >>> Software/Mobile/Embedded Systems Developer >>> +256773391723 >>> +256704209937 >>> Skype: mkgremo >>> Twitter: @mkgremo >>> "Life's Success is based on Opportunity not Chance" >>> >>> >>> _______________________________________________ >>> rules-dev mailing list >>> rules-dev(a)lists.jboss.org >>> https://lists.jboss.org/mailman/listinfo/rules-dev >>> >> >> >> >> -- >> - MyJourney @ http://salaboy.com <http://salaboy.wordpress.com> >> - Co-Founder @ http://www.jugargentina.org >> - Co-Founder @ http://www.jbug.com.ar >> >> - Salatino "Salaboy" Mauricio - >> >> _______________________________________________ >> rules-dev mailing list >> rules-dev(a)lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/rules-dev >> > > > > -- > Moses Kalema > Bachelor Science in Computer Engineering > Software/Mobile/Embedded Systems Developer > +256773391723 > +256704209937 > Skype: mkgremo > Twitter: @mkgremo > "Life's Success is based on Opportunity not Chance" > > > _______________________________________________ > rules-dev mailing list > rules-dev(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-dev > -- - MyJourney @ http://salaboy.com <http://salaboy.wordpress.com> - Co-Founder @ http://www.jugargentina.org - Co-Founder @ http://www.jbug.com.ar - Salatino "Salaboy" Mauricio - _______________________________________________ rules-dev mailing list rules-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-dev