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java.lang.NullPointerException: null	at feign.ribbon.LoadBalancingTarget.apply(LoadBalancingTarget.java:95)	at feign.SynchronousMethodHandler.targetRequest(SynchronousMethodHandler.java:156)	at feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:88)	at feign.SynchronousMethodHandler.invoke(SynchronousMethodHandler.java:76)	at feign.hystrix.HystrixInvocationHandler$1.run(HystrixInvocationHandler.java:98)	at com.netflix.hystrix.HystrixCommand$1.call(HystrixCommand.java:293)	at com.netflix.hystrix.HystrixCommand$1.call(HystrixCommand.java:289)	at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:46)	at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:35)	at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:50)	at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)	at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:50)	at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)	at rx.Observable.unsafeSubscribe(Observable.java:8460)	at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:51)	at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:35)	at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:50)	at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)	at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:50)	at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)	at rx.Observable.unsafeSubscribe(Observable.java:8460)	at rx.internal.operators.OperatorSubscribeOn$1.call(OperatorSubscribeOn.java:94)	at com.netflix.hystrix.strategy.concurrency.HystrixContexSchedulerAction$1.call(HystrixContexSchedulerAction.java:56)	at com.netflix.hystrix.strategy.concurrency.HystrixContexSchedulerAction$1.call(HystrixContexSchedulerAction.java:47)	at com.netflix.hystrix.strategy.concurrency.HystrixContexSchedulerAction.call(HystrixContexSchedulerAction.java:69)	at rx.internal.schedulers.ScheduledAction.run(ScheduledAction.java:55)	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)	at java.util.concurrent.FutureTask.run(FutureTask.java:266)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)	at java.lang.Thread.run(Thread.java:745)