presto-session-property-managers/src/main/java/io/prestosql/plugin/session/db/DbSessionPropertyManager.java/DbSessionPropertyManager/DbSessionPropertyManager
class DbSessionPropertyManager:    @Inject
    public DbSessionPropertyManager(DbSpecsProvider specsProvider)
    {
        this.specsProvider = requireNonNull(specsProvider, "specsProvider is null");
    }