NSD经理崩溃的Andr​​oid 4.2.2

发现服务导致系统崩溃。类型发现我想要的是

Discovering services results in a system crash. The type of discover I am trying is

_ http._tcp。

"_http._tcp."

这里的日志。

D/NsdService(13310): Discover services
E/AndroidRuntime(13310): *** FATAL EXCEPTION IN SYSTEM PROCESS: NsdService
E/AndroidRuntime(13310): java.lang.NullPointerException
E/AndroidRuntime(13310): at com.android.server.NsdService$ClientInfo.access$1200(NsdService.java:801)
E/AndroidRuntime(13310):    at com.android.server.NsdService$NsdStateMachine$EnabledState.requestLimitReached(NsdService.java:244)
E/AndroidRuntime(13310):    at com.android.server.NsdService$NsdStateMachine$EnabledState.processMessage(NsdService.java:292)
E/AndroidRuntime(13310):    at com.android.internal.util.StateMachine$SmHandler.processMsg(StateMachine.java:905)
E/AndroidRuntime(13310):    at com.android.internal.util.StateMachine$SmHandler.handleMessage(StateMachine.java:760)
E/AndroidRuntime(13310):    at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime(13310):    at android.os.Looper.loop(Looper.java:137)
E/AndroidRuntime(13310):    at android.os.HandlerThread.run(HandlerThread.java:60)

我使用的发现开始的code是

NsdManager nsd = (NsdManager) getSystemService(Context.NSD_SERVICE);
nsd.discoverServices("_http._tcp.", NsdManager.PROTOCOL_DNS_SD, discoveryListener);

当我跑，我的手机每次重新启动。我想这是在Android 4.2.2中的错误

When I run, my phone restarts everytime. I guess this is a bug on Android 4.2.2