title: FATAL EXCEPTION: highpool[11] when send and receive payload using nearby connections API
body: <p>I have an application android that using nearby connections API to communicate between 2 devices. But when i run in long time it throw an exception and restart service.</p>
  
  <pre><code>DeviceDoctorHandler    Crash Hash: ad2abb125bf96bd465c5dbafb8140da7ddfbfd31
  DeviceDoctorHandler    Shushing crash.
  DeviceDoctorHandler    FATAL EXCEPTION: highpool[11]
  DeviceDoctorHandler    Process: com.google.android.gms.nearby.connection, PID: 31625
  DeviceDoctorHandler    java.util.ConcurrentModificationException
  DeviceDoctorHandler     at pj.a(:com.google.android.gms@11746430:24)
  DeviceDoctorHandler     at pj.a(:com.google.android.gms@11746430:14)
  DeviceDoctorHandler     at pj.put(:com.google.android.gms@11746430:3)
  DeviceDoctorHandler     at xvs.a(:com.google.android.gms@11746430:139)
  DeviceDoctorHandler     at xus.a(:com.google.android.gms@11746430:16)
  DeviceDoctorHandler     at xup.run(:com.google.android.gms@11746430:8)
  DeviceDoctorHandler     at mmu.run(:com.google.android.gms@11746430:26)
  DeviceDoctorHandler     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
  DeviceDoctorHandler     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
  DeviceDoctorHandler     at mse.run(:com.google.android.gms@11746430)
  DeviceDoctorHandler     at java.lang.Thread.run(Thread.java:762)
  DeviceDoctorHandler 
  </code></pre>
  
  <p>Can anyone help me</p>
  
  <p>Many thanks!</p>