// Update a single field of the user and verify that the changed address is not stored.
	newAge := uint(100)
	user.Account.Number = "new_account_number"
	db := DB.Model(&user).UpdateColumns(User{Age: newAge})

	if db.RowsAffected != 1 {
		t.Errorf("Expected RowsAffected=1 but instead RowsAffected=%v", db.RowsAffected)
	}

	// Verify that Age now=`newAge`.
	result := &User{}
	result.ID = user.ID
	DB.Preload("Account").First(result)

    String oldName = Thread.currentThread().getName();
    final Supplier<String> newName = Suppliers.ofInstance("MyCrazyThreadName");
    Callable<@Nullable Void> callable =
        new Callable<@Nullable Void>() {
          @Override
          public @Nullable Void call() throws Exception {
            assertEquals(Thread.currentThread().getName(), newName.get());
            return null;
          }
        };

    String oldName = Thread.currentThread().getName();
    final Supplier<String> newName = Suppliers.ofInstance("MyCrazyThreadName");
    Callable<@Nullable Void> callable =
        new Callable<@Nullable Void>() {
          @Override
          public @Nullable Void call() throws Exception {
            assertEquals(Thread.currentThread().getName(), newName.get());
            return null;
          }
        };

    static class NewSuper {}

    static class NewBase extends NewSuper {}

    @Incubating
    static class NewIncubatingBase extends NewSuper {}

    @Incubating
    interface IncubatingInterface {}

    interface InternalInterface {}

    interface StablePublicInterface {}

    CtClass oldBase
    CtClass newBase
    CtClass newSuper
    CtClass newIncubatingBase

        }
        [OldBase, OldSub, NewBase, NewSub].each {
            classes[it.simpleName] = instanceScopedPool.get(it.name)
        }

        classes['OldBase'].superclass = classes['OldSuperInternal']
        classes['NewBase'].superclass = classes['NewSuperInternal']
        classes['OldSub'].superclass = classes['OldBase']
        classes['NewSub'].superclass = classes['NewBase']

func (m Migrator) RenameColumn(value interface{}, oldName, newName string) error {
	return m.RunWithValue(value, func(stmt *gorm.Statement) error {
		if stmt.Schema != nil {
			if field := stmt.Schema.LookUpField(oldName); field != nil {
				oldName = field.DBName
			}

			if field := stmt.Schema.LookUpField(newName); field != nil {
				newName = field.DBName
			}
		}

	GetTypeAliases(databaseTypeName string) []string

	// Tables
	CreateTable(dst ...interface{}) error
	DropTable(dst ...interface{}) error
	HasTable(dst interface{}) bool
	RenameTable(oldName, newName interface{}) error
	GetTables() (tableList []string, err error)
	TableType(dst interface{}) (TableType, error)

	// Columns
	AddColumn(dst interface{}, field string) error
	DropColumn(dst interface{}, field string) error

    public void manageArtifact(Artifact artifact, Artifact replacement) {}

    public void selectVersionFromRange(Artifact artifact) {}

    public void restrictRange(Artifact artifact, Artifact replacement, VersionRange newRange) {}

    }

    public void restrictRange(Artifact artifact, Artifact replacement, VersionRange newRange) {
        logger.debug(indent + artifact + " (range restricted from: " + artifact.getVersionRange() + " and: "
                + replacement.getVersionRange() + " to: " + newRange + " )");
    }

    /**

		}
	}

	type NewColumnStruct struct {
		gorm.Model
		Name    string
		NewName string
	}

	if err := DB.Table("column_structs").Migrator().AddColumn(&NewColumnStruct{}, "NewName"); err != nil {
		t.Fatalf("Failed to add column, got %v", err)
	}

	if !DB.Table("column_structs").Migrator().HasColumn(&NewColumnStruct{}, "NewName") {
		t.Fatalf("Failed to find added column")
	}