Refactoring

app/src/main/java/eu/faircode/email/BoundaryCallbackMessages.java

@@ -90,7 +90,7 @@ public class BoundaryCallbackMessages extends PagedList.BoundaryCallback<TupleMe
 
         void onLoaded(int fetched);
 
-        void onError(@NonNull Throwable ex);
+        void onException(@NonNull Throwable ex);
     }
 
     BoundaryCallbackMessages(Context context, long folder, boolean server, String query, int pageSize) {
@@ -151,7 +151,7 @@ public class BoundaryCallbackMessages extends PagedList.BoundaryCallback<TupleMe
                         handler.post(new Runnable() {
                             @Override
                             public void run() {
-                                intf.onError(ex);
+                                intf.onException(ex);
                             }
                         });
                 } finally {

app/src/main/java/eu/faircode/email/FragmentMessages.java

@@ -2725,7 +2725,7 @@ public class FragmentMessages extends FragmentBase implements SharedPreferences.
         }
 
         @Override
-        public void onError(Throwable ex) {
+        public void onException(@NonNull Throwable ex) {
             if (getLifecycle().getCurrentState().isAtLeast(Lifecycle.State.RESUMED))
                 if (ex instanceof IllegalStateException) {
                     Snackbar snackbar = Snackbar.make(view, ex.getMessage(), Snackbar.LENGTH_LONG);