make 3p call safe

Author: typotter

dd-sdk-android-core/src/main/kotlin/com/datadog/android/core/internal/NoOpInternalSdkCore.kt

@@ -26,6 +26,7 @@ import okhttp3.OkHttpClient
 import okhttp3.Request
 import okhttp3.Response
 import java.io.File
+import java.net.HttpURLConnection
 import java.util.UUID
 import java.util.concurrent.Callable
 import java.util.concurrent.Delayed
@@ -315,8 +316,16 @@ internal object NoOpInternalSdkCore : InternalSdkCore {
 
         override fun enqueue(responseCallback: okhttp3.Callback) = Unit
 
+        @Suppress("UnsafeThirdPartyFunctionCall") // All required fields are set, won't throw
         override fun execute(): Response {
-            return Response.Builder().build()
+            // Response.Builder.build() requires: request, protocol, code, and message
+            // to be set, otherwise it throws IllegalStateException
+            return Response.Builder()
+                .request(originalRequest)
+                .protocol(okhttp3.Protocol.HTTP_1_1)
+                .code(HttpURLConnection.HTTP_OK)
+                .message("OK")
+                .build()
         }
 
         override fun isCanceled(): Boolean {