- @Nonnull <T extends DataObject,L extends DataTreeChangeListener<T>> ListenerRegistration<L> registerDataTreeChangeListener(@Nonnull DataTreeIdentifier<T> treeId, @Nonnull L listener);
-}
\ No newline at end of file
+ <T extends DataObject, L extends DataTreeChangeListener<T>> @NonNull ListenerRegistration<L>
+ registerDataTreeChangeListener(@NonNull DataTreeIdentifier<T> treeId, @NonNull L listener);
+}