Java 应用程序开始给出黑色sceen

我的应用程序是正确的，当我重新启动并在控制台中“运行”时，它给了我：

[2014-04-18 07:35:17 - DeviceMonitor] Adb connection Error:An existing connection was forcibly closed by the remote host
[2014-04-18 07:35:18 - DeviceMonitor] Connection attempts: 1
[2014-04-18 07:35:34 - DeviceMonitor] Adb connection Error:EOF
[2014-04-18 07:35:35 - DeviceMonitor] Connection attempts: 1
[2014-04-18 07:35:37 - DeviceMonitor] Connection attempts: 2
[2014-04-18 07:35:40 - DeviceMonitor] Connection attempts: 3
[2014-04-18 07:35:42 - DeviceMonitor] Connection attempts: 4
[2014-04-18 07:35:44 - DeviceMonitor] Connection attempts: 5
[2014-04-18 07:35:46 - DeviceMonitor] Connection attempts: 6
[2014-04-18 07:35:48 - DeviceMonitor] Connection attempts: 7
[2014-04-18 07:35:50 - DeviceMonitor] Connection attempts: 8
[2014-04-18 07:35:52 - DeviceMonitor] Connection attempts: 9
[2014-04-18 07:35:54 - DeviceMonitor] Connection attempts: 10
[2014-04-18 07:35:56 - DeviceMonitor] Connection attempts: 11

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有人知道为什么吗？此外，它开始给我一个黑屏

DDMS，查找设备-->查看菜单-->重置adb。我认为我的DDMS是空的，当我右键单击它时，它给我一个关闭，我应该添加什么？或者在哪里？