Наверное все таки пермишен проблемы, когда захотел вывести на экран ответ, такой отчет получил
java.lang.SecurityException: Permission denied (missing INTERNET permission?)
at java.net.Inet6AddressImpl.lookupHostByName(
Inet6AddressImpl.java:150)
at java.net.Inet6AddressImpl.lookupAllHostAddr(
Inet6AddressImpl.java:103)
at java.net.InetAddress.getAllByName(
InetAddress.java:1152)
at com.android.okhttp.Dns$1.lookup(
Dns.java:41)
at com.android.okhttp.internal.http.RouteSelector.resetNextInetSocketAddress(
RouteSelector.java:178)
at com.android.okhttp.internal.http.RouteSelector.nextProxy(
RouteSelector.java:144)
at
com.android.okhttp.internal.http.RouteSelector.next(
RouteSelector.java:86)
at com.android.okhttp.internal.http.StreamAllocation.findConnection(
StreamAllocation.java:176)
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.getResponse(
HttpURLConnectionImpl.java:411)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getResponseCode(
HttpURLConnectionImpl.java:542)
at com.android.okhttp.internal.huc.DelegatingHttpsURLConnection.getResponseCode(
DelegatingHttpsURLConnection.java:106)
at com.android.okhttp.internal.huc.HttpsURLConnectionImpl.getResponseCode(
HttpsURLConnectionImpl.java:30)
at com.example.myapplication.MainActivity.execQuery(
MainActivity.java:80)
at com.example.myapplication.MainActivity.access$0(
MainActivity.java:76)
at com.example.myapplication.MainActivity$
1.run(
MainActivity.java:65)
Caused by: android.system.GaiException: android_getaddrinfo failed: EAI_NODATA (No address associated with hostname)
at libcore.io.Linux.android_getaddrinfo(Native Method)
at libcore.io.ForwardingOs.android_getaddrinfo(
ForwardingOs.java:74)
at libcore.io.BlockGuardOs.android_getaddrinfo(
BlockGuardOs.java:200)
at libcore.io.ForwardingOs.android_getaddrinfo(
ForwardingOs.java:74)
at java.net.Inet6AddressImpl.lookupHostByName(
Inet6AddressImpl.java:135)
... 19 more
Caused by: android.system.ErrnoException: android_getaddrinfo failed: EACCES (Permission denied)
... 24 more