MyAppAuth crashes

[ZaighamRaza]

I am getting this exception on performTokenRequest and I am not able to figure out what is the issue here is my complete log

E/AndroidRuntime: FATAL EXCEPTION: AsyncTask openid/AppAuth-Android#1
Process: com.example.myappauth, PID: 21364
java.lang.RuntimeException: An error occurred while executing doInBackground()
at android.os.AsyncTask$4.done(AsyncTask.java:415)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:383)
at java.util.concurrent.FutureTask.setException(FutureTask.java:252)
at java.util.concurrent.FutureTask.run(FutureTask.java:271)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:305)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
at java.lang.Thread.run(Thread.java:923)
Caused by: java.lang.IllegalArgumentException: Invalid input to toASCII: umm_sts_service.dev.local
at java.net.IDN.toASCII(IDN.java:115)
at javax.net.ssl.SNIHostName.(SNIHostName.java:99)
at com.android.org.conscrypt.Platform.getSSLParameters(Platform.java:182)
at com.android.org.conscrypt.ConscryptEngine.getSSLParameters(ConscryptEngine.java:525)
at com.android.org.conscrypt.ConscryptEngineSocket.getSSLParameters(ConscryptEngineSocket.java:184)
at com.android.okhttp.internal.Platform.configureTlsExtensions(Platform.java:121)
at com.android.okhttp.internal.io.RealConnection.connectTls(RealConnection.java:191)
at com.android.okhttp.internal.io.RealConnection.connectSocket(RealConnection.java:153)
at com.android.okhttp.internal.io.RealConnection.connect(RealConnection.java:116)
at com.android.okhttp.internal.http.StreamAllocation.findConnection(StreamAllocation.java:186)
at com.android.okhttp.internal.http.StreamAllocation.findHealthyConnection(StreamAllocation.java:128)
at com.android.okhttp.internal.http.StreamAllocation.newStream(StreamAllocation.java:97)
at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:289)
at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:232)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:465)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:131)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getOutputStream(HttpURLConnectionImpl.java:262)
at com.android.okhttp.internal.huc.DelegatingHttpsURLConnection.getOutputStream(DelegatingHttpsURLConnection.java:219)
at com.android.okhttp.internal.huc.HttpsURLConnectionImpl.getOutputStream(HttpsURLConnectionImpl.java:30)
at net.openid.appauth.AuthorizationService$TokenRequestTask.doInBackground(AuthorizationService.java:420)
at net.openid.appauth.AuthorizationService$TokenRequestTask.doInBackground(AuthorizationService.java:375)
at android.os.AsyncTask$3.call(AsyncTask.java:394)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:305)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
at java.lang.Thread.run(Thread.java:923)
Caused by: The input does not conform to the STD 3 ASCII rules. line: 0. preContext: . postContext: s_serv