MS-419 java.lang.String.isEmpty() was being called.
MS-419 java.lang.String.isEmpty() was being called.

This code also ensures that toLowerCase is called using US locale

appnexus/mobile-sdk-android,appnexus/mobile-sdk-android,appnexus/mobile-sdk-android,appnexus/mobile-sdk-android,appnexus/mobile-sdk-android