java - Google App Engine Task Queue not working with eclipse plugin: org.quartz.SchedulerConfigException: Unable to instantiate class load helper class -
i trying implement gae task queue spring. receiving following error when run queue implementation.
error
info: 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 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 instantiate class load helper class: org.quartz.simpl.cascadingclassloadhelper cannot cast org.quartz.spi.classloadhelper [see nested exception: java.lang.classcastexception: org.quartz.simpl.cascadingclassloadhelper cannot cast org.quartz.spi.classloadhelper] @ com.google.appengine.api.taskqueue.dev.localtaskqueue.startscheduler(localtaskqueue.java:645) @ com.google.appengine.api.taskqueue.dev.localtaskqueue.start_(localtaskqueue.java:240) @ com.google.appengine.api.taskqueue.dev.localtaskqueue.access$000(localtaskqueue.java:66) @ com.google.appengine.api.taskqueue.dev.localtaskqueue$2.run(localtaskqueue.java:207) @ java.security.accesscontroller.doprivileged(native method) @ com.google.appengine.api.taskqueue.dev.localtaskqueue.start(localtaskqueue.java:204) @ 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 using google app engine eclipse plugin. app engine jars added default. not using maven. app engine sdk version 1.9
the screenshot jars
referred this post
but don't see appengine-api-stubs.jar , appengine-testing-.jar in classpath. besides appengine needs jars @ runtime. doesn't let delete of jars.
i tried removing appengine-api-labs.jar , running doesn't work. can please provide on this? how rid of error?
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