org.quartz.JobPersistenceException: Couldn't retrieve job because a required class was not found: jobs.Counter [See nested exception: java.lang.ClassNotFoundException: jobs.Counter]

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  1. ,
    via oracle.com by Unknown author

    App tries to load in a class through its string name using forName method in class Class, findSystemClass method in class ClassLoader, loadClass method in class ClassLoader but no definition for the class with the specified name could be found.

  2. ,

    Unless you are involved in dynamic class loading and using the Java Reflection API, chances are that the ClassNotFoundException error you are getting is not from your application code but from a referencing API.

Solutions on the web

via Stack Overflow by Hoang Nguyen
, 2 years ago
Couldn't retrieve job because a required class was not found: jobs.Counter [See nested exception: java.lang.ClassNotFoundException: jobs.Counter]
via Terracotta by hmnguyen, 1 year ago
Couldn't retrieve job because a required class was not found: jobs.Counter [See nested exception: java.lang.ClassNotFoundException: jobs.Counter]
via Terracotta by albertP, 1 year ago
Couldn't retrieve job: An SQLException was provoked by the following failure: java.lang.UnsupportedOperationException: The method com.sybase.jdbc3.jdbc.SybResultSet.getBlob(String) is not supported and should not be called. [See nested exception
via cloveretl.com by Unknown author, 1 year ago
Couldn't retrieve job because the BLOB couldn't be deserialized: null [See nested exception: java.io.EOFException]
via Google Groups by Jorith vd Heuvel, 10 months ago
Couldn't retrieve job because the BLOB couldn't be deserialized: null [See nested exception: java.io.EOFException]
via Oracle Community by Djam, 1 year ago
Couldn't retrieve job because the BLOB couldn't be deserialized: invalid stream header: EFBFBDEF [See nested exception: java.io.StreamCorruptedException: invalid stream header: EFBFBDEF]
java.lang.ClassNotFoundException: jobs.Counter	at java.net.URLClassLoader$1.run(URLClassLoader.java:202)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader.findClass(URLClassLoader.java:190)	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)	at java.lang.ClassLoader.loadClass(ClassLoader.java:247)	at sbt.PlayCommands$$anonfun$53$$anonfun$55$$anon$2.loadClass(PlayCommands.scala:535)	at org.quartz.simpl.InitThreadContextClassLoadHelper.loadClass(InitThreadContextClassLoadHelper.java:72)	at org.quartz.simpl.CascadingClassLoadHelper.loadClass(CascadingClassLoadHelper.java:114)	at org.quartz.simpl.CascadingClassLoadHelper.loadClass(CascadingClassLoadHelper.java:138)	at org.quartz.impl.jdbcjobstore.StdJDBCDelegate.selectJobDetail(StdJDBCDelegate.java:873)	at org.quartz.impl.jdbcjobstore.JobStoreSupport.retrieveJob(JobStoreSupport.java:1373)	at org.quartz.impl.jdbcjobstore.JobStoreSupport$9.execute(JobStoreSupport.java:1366)	at org.quartz.impl.jdbcjobstore.JobStoreSupport.executeInNonManagedTXLock(JobStoreSupport.java:3798)	at org.quartz.impl.jdbcjobstore.JobStoreTX.executeInLock(JobStoreTX.java:93)	at org.quartz.impl.jdbcjobstore.JobStoreSupport.executeWithoutLock(JobStoreSupport.java:3703)	at org.quartz.impl.jdbcjobstore.JobStoreSupport.retrieveJob(JobStoreSupport.java:1363)	at org.quartz.core.QuartzScheduler.getJobDetail(QuartzScheduler.java:1465)	at org.quartz.impl.StdScheduler.getJobDetail(StdScheduler.java:489)	at utils.SchedulerUtils.getAlljob(SchedulerUtils.java:44)	at controllers.Task.index(Task.java:23)	at Routes$$anonfun$routes$1$$anonfun$applyOrElse$2$$anonfun$apply$2.apply(routes_routing.scala:65)	at Routes$$anonfun$routes$1$$anonfun$applyOrElse$2$$anonfun$apply$2.apply(routes_routing.scala:65)	at play.core.Router$HandlerInvoker$$anon$6$$anon$2.invocation(Router.scala:141)	at play.core.Router$Routes$$anon$1.invocation(Router.scala:322)	at play.core.j.JavaAction$$anon$1.call(JavaAction.scala:31)	at play.core.j.JavaAction$$anon$2.apply(JavaAction.scala:74)	at play.core.j.JavaAction$$anon$2.apply(JavaAction.scala:73)	at play.libs.F$Promise$PromiseActor.onReceive(F.java:420)	at akka.actor.UntypedActor$$anonfun$receive$1.applyOrElse(UntypedActor.scala:159)	at akka.actor.ActorCell.receiveMessage(ActorCell.scala:425)	at akka.actor.ActorCell.invoke(ActorCell.scala:386)	at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:230)	at akka.dispatch.Mailbox.run(Mailbox.scala:212)	at akka.dispatch.ForkJoinExecutorConfigurator$MailboxExecutionTask.exec(AbstractDispatcher.scala:502)	at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:262)	at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:975)	at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1478)	at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:104)