presto-main/src/main/java/io/prestosql/connector/system/GlobalSystemConnectorFactory.java/GlobalSystemConnectorFactory/GlobalSystemConnectorFactory
class GlobalSystemConnectorFactory:    @Inject
    public GlobalSystemConnectorFactory(Set<SystemTable> tables, Set<Procedure> procedures)
    {
        this.tables = ImmutableSet.copyOf(requireNonNull(tables, "tables is null"));
        this.procedures = ImmutableSet.copyOf(requireNonNull(procedures, "procedures is null"));
    }