如何在Scala中调试代码Future？如何调试Scala Future？
我正在使用IntelliJ。
除了记录所有我看不到的东西。
有关如何继续的任何建议？
EDIT1：
以下是错误我得到：
java.lang.IllegalAccessError: tried to access field org.iadb.poolpartyconnector.conceptsrecommendation.RelevantConceptsRecommendationServicePoolPartyImpl$$anonfun$2$$anonfun$apply$1$$anonfun$apply$2$$anonfun$apply$3.concepts$1 from class org.iadb.poolpartyconnector.conceptsrecommendation.RelevantConceptsRecommendationServicePoolPartyImpl$$anonfun$2$$anonfun$apply$1$$anonfun$apply$2$$anonfun$apply$3$GeneratedEvaluatorClass$3$1 at org.iadb.poolpartyconnector.conceptsrecommendation.RelevantConceptsRecommendationServicePoolPartyImpl$$anonfun$2$$anonfun$apply$1$$anonfun$apply$2$$anonfun$apply$3$GeneratedEvaluatorClass$3$1.invoke(FileToCompile0.scala:173) at org.iadb.poolpartyconnector.conceptsrecommendation.RelevantConceptsRecommendationServicePoolPartyImpl$$anonfun$2$$anonfun$apply$1$$anonfun$apply$2$$anonfun$apply$3.apply(RelevantConceptsRecommendationService.scala:169) at org.iadb.poolpartyconnector.conceptsrecommendation.RelevantConceptsRecommendationServicePoolPartyImpl$$anonfun$2$$anonfun$apply$1$$anonfun$apply$2$$anonfun$apply$3.apply(RelevantConceptsRecommendationService.scala:166) at scala.concurrent.impl.Future$PromiseCompletingRunnable.liftedTree1$1(Future.scala:24) at scala.concurrent.impl.Future$PromiseCompletingRunnable.run(Future.scala:24) at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:40) at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:397) at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) java.lang.NoSuchFieldError: doc$1 at org.iadb.poolpartyconnector.conceptsrecommendation.RelevantConceptsRecommendationServicePoolPartyImpl$$anonfun$2$$anonfun$apply$1$$anonfun$apply$2$$anonfun$apply$3$GeneratedEvaluatorClass$4$1.invoke(FileToCompile1.scala:173) at org.iadb.poolpartyconnector.conceptsrecommendation.RelevantConceptsRecommendationServicePoolPartyImpl$$anonfun$2$$anonfun$apply$1$$anonfun$apply$2$$anonfun$apply$3.apply(RelevantConceptsRecommendationService.scala:169) at org.iadb.poolpartyconnector.conceptsrecommendation.RelevantConceptsRecommendationServicePoolPartyImpl$$anonfun$2$$anonfun$apply$1$$anonfun$apply$2$$anonfun$apply$3.apply(RelevantConceptsRecommendationService.scala:166) at scala.concurrent.impl.Future$PromiseCompletingRunnable.liftedTree1$1(Future.scala:24) at scala.concurrent.impl.Future$PromiseCompletingRunnable.run(Future.scala:24) at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:40) at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:397) at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
我的代码：
def filterResultsWithExtractionSettings(conceptResults: ConceptResults): ConceptResults = {
import system.dispatcher
val mylist: Iterable[Future[List[Concept]]] = for (fieldSettings <- fieldSettingsList if fieldSettings.maxConceptsExtraction > 0; doc <- conceptResults.document; concepts <- doc.concepts) yield {
Future {
val schemefiltered = concepts.withFilter(e => e.conceptSchemes.contains(fieldSettings.scheme)).flatMap(e=> List(e))
schemefiltered.size match {
case e if e > fieldSettings.maxConceptsExtraction => schemefiltered.take(fieldSettings.maxConceptsExtraction)
case _ => schemefiltered
}
}
}
val res = Await.result(Future.sequence(mylist), Duration.Inf).flatten.toList
val distinctRes = res.distinct
conceptResults.copy(document = Some(conceptResults.document.get.copy(concepts = Some(distinctRes))))
}
好吧，只是把一个断点就行了... –
的IntelliJ调试器是越野车;我看到它导致这样的问题（'IllegalAccessError'永远不会发生在普通代码中）。我可以建议的是使用不同的调试器和/或提交一个最简单的例子作为JetBrains的错误报告。 – lmm
你有试过吗？ http://stackoverflow.com/questions/27784413/how-to-debug-a-multi-threaded-app-in-intellij – mike