Few days ago is appeared this message in google developer console for an app that i published several months ago:
Your app is using an unsafe implementation of the X509TrustManager interface with an Apache HTTP client, resulting in a security vulnerability. Please see this Google Help Center article for details, including the deadline for fixing the vulnerability. Please address this issue as soon as possible and increment the version number of the upgraded APK. Beginning May 17, 2016, Google Play will block publishing of any new apps or updates containing the unsafe implementation of the interface X509TrustManager._
In my app i dont use https connections but simple http.
How can fix this problem?
Thank you in advance for reply