@Nullable
        protected static DBExtension load(final DBExtensionType type, @NonNull final String key) {
            return withAccessLock(() -> {
                if (!init(false)) {
                    return null;
                }
                return load(database, type, key);
            });
        }
get the first entry for this key
main/src/main/java/cgeo/geocaching/storage/DataStore.java