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java.lang.NullPointerException: null	at play.modules.swagger.ApiListingCache$$anonfun$listing$1.apply(ApiListingCache.scala:15)	at play.modules.swagger.ApiListingCache$$anonfun$listing$1.apply(ApiListingCache.scala:11)	at scala.Option.orElse(Option.scala:289)	at play.modules.swagger.ApiListingCache$.listing(ApiListingCache.scala:11)	at controllers.SwaggerBaseApiController.getResourceListing(ApiHelpController.scala:128)	at controllers.ApiHelpController$$anonfun$getResources$1.apply(ApiHelpController.scala:74)	at controllers.ApiHelpController$$anonfun$getResources$1.apply(ApiHelpController.scala:71)	at play.api.mvc.ActionBuilder$$anonfun$apply$16.apply(Action.scala:408)	at play.api.mvc.ActionBuilder$$anonfun$apply$16.apply(Action.scala:407)	at play.api.mvc.Action$.invokeBlock(Action.scala:533)	at play.api.mvc.Action$.invokeBlock(Action.scala:530)	at play.api.mvc.ActionBuilder$$anon$1.apply(Action.scala:493)	at play.api.mvc.Action$$anonfun$apply$1$$anonfun$apply$4$$anonfun$apply$5.apply(Action.scala:105)	at play.api.mvc.Action$$anonfun$apply$1$$anonfun$apply$4$$anonfun$apply$5.apply(Action.scala:105)	at play.utils.Threads$.withContextClassLoader(Threads.scala:21)	at play.api.mvc.Action$$anonfun$apply$1$$anonfun$apply$4.apply(Action.scala:104)	at play.api.mvc.Action$$anonfun$apply$1$$anonfun$apply$4.apply(Action.scala:103)	at scala.Option.map(Option.scala:146)	at play.api.mvc.Action$$anonfun$apply$1.apply(Action.scala:103)	at play.api.mvc.Action$$anonfun$apply$1.apply(Action.scala:96)	at play.api.libs.iteratee.DoneIteratee$$anonfun$mapM$2.apply(Iteratee.scala:741)	at play.api.libs.iteratee.DoneIteratee$$anonfun$mapM$2.apply(Iteratee.scala:741)	at scala.concurrent.impl.Future$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)