presto-hive/src/main/java/io/prestosql/plugin/hive/HiveCoercionPolicy.java/HiveCoercionPolicy/HiveCoercionPolicy
class HiveCoercionPolicy:    @Inject
    public HiveCoercionPolicy(TypeManager typeManager)
    {
        this.typeManager = requireNonNull(typeManager, "typeManager is null");
    }