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Caused by: android.system.ErrnoException: connect failed: EMFILE (Too many open files)
at libcore.io.Posix.connect(Native Method)
at libcore.io.BlockGuardOs.connect(BlockGuardOs.java:111)
at libcore.io.IoBridge.connectErrno(IoBridge.java:137)
at libcore.io.IoBridge.connect(IoBridge.java:122)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:183) 
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:452) 
at java.net.Socket.connect(Socket.java:892) 
at com.android.okhttp.internal.Platform.connectSocket(Platform.java:117) 
at com.android.okhttp.internal.http.SocketConnector.connectRawSocket(SocketConnector.java:160) 
at com.android.okhttp.internal.http.SocketConnector.connectCleartext(SocketConnector.java:67) 
at com.android.okhttp.Connection.connect(Connection.java:152) 
at com.android.okhttp.Connection.connectAndSetOwner(Connection.java:185) 
at com.android.okhttp.OkHttpClient$1.connectAndSetOwner(OkHttpClient.java:128) 
at com.android.okhttp.internal.http.HttpEngine.nextConnection(HttpEngine.java:342) 
at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:331) 
at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:249) 
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:437) 
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:388) 
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getResponseCode(HttpURLConnectionImpl.java:501) 
at com.danikula.videocache.HttpUrlSource.openConnection(HttpUrlSource.java:150) 
at com.danikula.videocache.HttpUrlSource.open(HttpUrlSource.java:68) 
at com.danikula.videocache.Pinger.pingServer(Pinger.java:86) 
at com.danikula.videocache.Pinger.access$100(Pinger.java:28) 
at com.danikula.videocache.Pinger$PingCallable.call(Pinger.java:108) 
at com.danikula.videocache.Pinger$PingCallable.call(Pinger.java:104) 
at java.util.concurrent.FutureTask.run(FutureTask.java:237) 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
at java.lang.Thread.run(Thread.java:818) 

跟踪进入 com.danikula.videocache.Pinger.pingServer，然后进入 HttpUrlSource.openConnection；首先阅读这些入口点，并复现 Android 的 EMFILE 故障。Issue 没有说明预期的变更或完成检查，因此请在实现之前确认原因并定义所需的行为。

由索引模型根据 Issue 内容生成。