Error closing socket input stream. Version: 2.7.1

I continue getting the following error in android
```
E/HttpProxyCacheServer: HttpProxyCacheServer error
com.danikula.videocache.ProxyCacheException: Error closing socket input stream. Version: 2.7.1
at com.danikula.videocache.HttpProxyCacheServer.closeSocketInput(HttpProxyCacheServer.java:287)
at com.danikula.videocache.HttpProxyCacheServer.releaseSocket(HttpProxyCacheServer.java:272)
at com.danikula.videocache.HttpProxyCacheServer.processSocket(HttpProxyCacheServer.java:245)
at com.danikula.videocache.HttpProxyCacheServer.access$200(HttpProxyCacheServer.java:54)
at com.danikula.videocache.HttpProxyCacheServer$SocketProcessorRunnable.run(HttpProxyCacheServer.java:340)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:458)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
at java.lang.Thread.run(Thread.java:764)
Caused by: java.io.IOException: shutdown failed: ENOTCONN (Transport endpoint is not connected)
at java.net.PlainSocketImpl.socketShutdown(PlainSocketImpl.java:275)
at java.net.AbstractPlainSocketImpl.shutdownInput(AbstractPlainSocketImpl.java:619)
at java.net.Socket.shutdownInput(Socket.java:1570)
at com.danikula.videocache.HttpProxyCacheServer.closeSocketInput(HttpProxyCacheServer.java:280)
at com.danikula.videocache.HttpProxyCacheServer.releaseSocket(HttpProxyCacheServer.java:272) 
at com.danikula.videocache.HttpProxyCacheServer.processSocket(HttpProxyCacheServer.java:245) 
at com.danikula.videocache.HttpProxyCacheServer.access$200(HttpProxyCacheServer.java:54) 
at com.danikula.videocache.HttpProxyCacheServer$SocketProcessorRunnable.run(HttpProxyCacheServer.java:340) 
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:458) 
at java.util.concurrent.FutureTask.run(FutureTask.java:266) 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641) 
at java.lang.Thread.run(Thread.java:764) 
Caused by: android.system.ErrnoException: shutdown failed: ENOTCONN (Transport endpoint is not connected)
at libcore.io.Linux.shutdown(Native Method)
at libcore.io.ForwardingOs.shutdown(ForwardingOs.java:177)
at java.net.PlainSocketImpl.socketShutdown(PlainSocketImpl.java:273)
at java.net.AbstractPlainSocketImpl.shutdownInput(AbstractPlainSocketImpl.java:619) 
at java.net.Socket.shutdownInput(Socket.java:1570) 
at com.danikula.videocache.HttpProxyCacheServer.closeSocketInput(HttpProxyCacheServer.java:280) 
at com.danikula.videocache.HttpProxyCacheServer.releaseSocket(HttpProxyCacheServer.java:272) 
at com.danikula.videocache.HttpProxyCacheServer.processSocket(HttpProxyCacheServer.java:245) 
at com.danikula.videocache.HttpProxyCacheServer.access$200(HttpProxyCacheServer.java:54) 
at com.danikula.videocache.HttpProxyCacheServer$SocketProcessorRunnable.run(HttpProxyCacheServer.java:340) 
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:458) 
at java.util.concurrent.FutureTask.run(FutureTask.java:266) 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641) 
at java.lang.Thread.run(Thread.java:764) 
```

Beginnen Sie in HttpProxyCacheServer.java bei closeSocketInput (Zeile 280), releaseSocket (Zeile 272) und processSocket (Zeile 245), und verwenden Sie den gemeldeten Stack Trace als Einstiegspunkt. Reproduzieren Sie den Socket-Shutdown-Pfad von Android 2.7.1 und bestimmen Sie das erwartete Verhalten, wenn der Shutdown ENOTCONN meldet; abgeschlossen ist die Aufgabe, wenn das Verhalten konsistent behandelt wird, ohne den gemeldeten Fehler.

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