java.lang.UnsupportedOperationException: empty.reduceLeft


Solutions on the web

Solution icon of github
empty.reduceLeft

Solution icon of github
via GitHub by Zzmc
, 2 months ago
empty.reduceLeft

Solution icon of github
empty.reduceLeft

Solution icon of googlegroups
via Google Groups by Unknown author, 4 months ago
empty.reduceLeft

Solution icon of github
empty.reduceLeft

Solution icon of github
empty.reduceLeft

Solution icon of github
empty.reduceLeft

Solution icon of stackoverflow
empty.reduceLeft

Solution icon of stackoverflow
empty.reduceLeft

Solution icon of github
via GitHub by xuwei-k
, 1 year ago
empty.reduceLeft

Stack trace

java.lang.UnsupportedOperationException: empty.reduceLeft
	at scala.collection.TraversableOnce$class.reduceLeft(TraversableOnce.scala:180)
	at scala.collection.AbstractTraversable.reduceLeft(Traversable.scala:104)
	at scala.collection.TraversableOnce$class.reduce(TraversableOnce.scala:208)
	at scala.collection.AbstractTraversable.reduce(Traversable.scala:104)
	at mesosphere.marathon.api.v2.TasksResource$$anonfun$indexJson$1$stateMachine$macro$87$1.apply(TasksResource.scala:74)
	at mesosphere.marathon.api.v2.TasksResource$$anonfun$indexJson$1$stateMachine$macro$87$1.apply(TasksResource.scala:53)
	at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:32)
	at scala.concurrent.impl.ExecutionContextImpl$AdaptedForkJoinTask.exec(ExecutionContextImpl.scala:121)
	at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
	at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.pollAndExecAll(ForkJoinPool.java:1253)
	at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1346)
	at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
	at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)

Write tip

You have a different solution? A short tip here would help you and many other users who saw this issue last week.

Users with the same issue

Once, 6 months ago
Once, 9 months ago