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Attempt to invoke virtual method 'java.lang.String com.example.apple.qs.Activity.db.model.Contact.getNameOrNumber()' on a null object reference
java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String com.example.apple.qs.Activity.db.model.Contact.getNameOrNumber()' on a null object reference	at com.example.apple.qs.Activity.adapter.MessageListAdapter$ItemFilter.performFiltering(MessageListAdapter.java:207)