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ralstonba / Async-Speed-with-Websockets

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EmptyStackException when extra pile is empty #14

Open ralstonba opened 5 years ago

ralstonba commented 5 years ago

java.util.EmptyStackException: null at java.util.Stack.peek(Stack.java:102) ~[na:1.8.0_171] at java.util.Stack.pop(Stack.java:84) ~[na:1.8.0_171] at com.example.speed.Model.Pile.pop(Pile.java:19) ~[classes/:na] at com.example.speed.Controller.SpeedController.stalemate(SpeedController.java:144) ~[classes/:na] at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source) ~[na:na] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_171] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_171] at org.springframework.messaging.handler.invocation.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:181) ~[spring-messaging-5.0.9.RELEASE.jar:5.0.9.RELEASE] at org.springframework.messaging.handler.invocation.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:114) ~[spring-messaging-5.0.9.RELEASE.jar:5.0.9.RELEASE] at org.springframework.messaging.handler.invocation.AbstractMethodMessageHandler.handleMatch(AbstractMethodMessageHandler.java:517) [spring-messaging-5.0.9.RELEASE.jar:5.0.9.RELEASE] at org.springframework.messaging.simp.annotation.support.SimpAnnotationMethodMessageHandler.handleMatch(SimpAnnotationMethodMessageHandler.java:495) [spring-messaging-5.0.9.RELEASE.jar:5.0.9.RELEASE] at org.springframework.messaging.simp.annotation.support.SimpAnnotationMethodMessageHandler.handleMatch(SimpAnnotationMethodMessageHandler.java:88) [spring-messaging-5.0.9.RELEASE.jar:5.0.9.RELEASE] at org.springframework.messaging.handler.invocation.AbstractMethodMessageHandler.handleMessageInternal(AbstractMethodMessageHandler.java:475) [spring-messaging-5.0.9.RELEASE.jar:5.0.9.RELEASE] at org.springframework.messaging.handler.invocation.AbstractMethodMessageHandler.handleMessage(AbstractMethodMessageHandler.java:411) [spring-messaging-5.0.9.RELEASE.jar:5.0.9.RELEASE] at org.springframework.messaging.support.ExecutorSubscribableChannel$SendTask.run(ExecutorSubscribableChannel.java:138) [spring-messaging-5.0.9.RELEASE.jar:5.0.9.RELEASE] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_171] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_171] at java.lang.Thread.run(Thread.java:748) [na:1.8.0_171]