I am trying to implement GAE Task queue with Spring. But I am receiving the following error when I run the queue implementation.
Error INFO: Successfully processed C:\Users\388638\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp3\PubSub\WEB-INF/queue.xml Apr 14, 2014 12:14:11 PM com.google.appengine.api.taskqueue.dev.LocalTaskQueue init INFO: LocalTaskQueue is initialized Apr 14, 2014 12:14:11 PM com.google.appengine.tools.development.ApiProxyLocalImpl log SEVERE: javax.servlet.ServletContext log: unavailable java.lang.RuntimeException: org.quartz.SchedulerConfigException: Unable to instantiate class load helper class: org.quartz.simpl.CascadingClassLoadHelper cannot be cast to org.quartz.spi.ClassLoadHelper [See nested exception: java.lang.ClassCastException: org.quartz.simpl.CascadingClassLoadHelper cannot be cast to org.quartz.spi.ClassLoadHelper] at com.google.appengine.api.taskqueue.dev.LocalTaskQueue.startScheduler(LocalTaskQueue.java:645) at com.google.appengine.api.taskqueue.dev.LocalTaskQueue.start_(LocalTaskQueue.java:240) at com.google.appengine.api.taskqueue.dev.LocalTaskQueue.access$000(LocalTaskQueue.java:66) at com.google.appengine.api.taskqueue.dev.LocalTaskQueue$2.run(LocalTaskQueue.java:207) at java.security.AccessController.doPrivileged(Native Method) at com.google.appengine.api.taskqueue.dev.LocalTaskQueue.start(LocalTaskQueue.java:204) at com.google.appengine.tools.development.ApiProxyLocalImpl.startServices(ApiProxyLocalImpl.java:604) Queue Code @RequestMapping("/subscribequeue") public String subscribeUser(@ModelAttribute TestUser tuser, Model model) { String useremail=tuser.getEmail(); System.out.println("User's email "+ useremail); Queue queue = QueueFactory.getQueue("subscription-queue"); queue.add(TaskOptions.Builder.withUrl("/sendusermail").param("emailid",useremail)); return "redirect:confirm"; } I am using the Google App Engine Eclipse plugin. So all the app engine jars are added by default. I am not using Maven. App engine sdk version 1.9 The screenshot for jars attached I referred some solution on the web they say about deleting appengine-testing.jar, appengine-api-labs.jar, appengine-api-stubs.jar. But I don't see any of the jar in the classpath. Besides the appengine needs all the jars at runtime. It doesn't let delete any of the jars. I tried removing the appengine-api-labs.jar and running but it doesn't work. Can anyone please provide any help on this? How do I get rid of the error? -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at http://groups.google.com/group/google-appengine. For more options, visit https://groups.google.com/d/optout.