java.util.ConcurrentModificationException and SharedPreference

Question

I\'ve found this crash in crash logs. I don\'t know when it is happening. Can someone give me advice what is the reason? Maybe someone has same crash.

java.util.         


        

Answer 1

We had seen this exception when using the SharedPreferences getStringSet method. This method returns a set that should not be modified. Modifying this set while the SharedPreferences object is being serialized to flash will produce a ConcurrentModificationException.

This will also happen if you use getAll and modify the returned map.

See the documentation

Answer 2

Someone have already answered this question, you might be interested to take a look at: ConcurrentModificationException in Android while accessing Shared Preferences