bitstadium/HockeySDK-Android — pull request #19 by bunjix (2013-09-25 20:33:19+00:00)
Title: Fix java.lang.NoSuchMethodError

https://developer.android.com/reference/java/lang/String.html#isEmpty() is available only for Api 11 and not Api 9.

Better use https://developer.android.com/reference/android/text/TextUtils.html#isEmpty(java.lang.CharSequence)