HBase setMaxVersions java API不工作

import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.Admin;
import org.apache.hadoop.hbase.client.ColumnFamilyDescriptor;
import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;
import org.apache.hadoop.hbase.client.Connection;
import org.apache.hadoop.hbase.client.ConnectionFactory;
import org.apache.hadoop.hbase.client.TableDescriptor;
import org.apache.hadoop.hbase.client.TableDescriptorBuilder;

public class HBaseSetMaxVersionsExample {
    public static void main(String[] args) throws Exception {
        // 创建HBase配置对象
        org.apache.hadoop.conf.Configuration config = HBaseConfiguration.create();

        // 创建HBase连接对象
        Connection connection = ConnectionFactory.createConnection(config);

        // 获取Admin对象
        Admin admin = connection.getAdmin();

        // 指定表名
        TableName tableName = TableName.valueOf("your_table_name");

        // 获取表的描述符对象
        TableDescriptor tableDescriptor = admin.getDescriptor(tableName);

        // 获取列族的描述符对象
        ColumnFamilyDescriptor columnFamilyDescriptor = tableDescriptor.getColumnFamily(Bytes.toBytes("your_column_family"));

        // 设置最大版本数为10
        ColumnFamilyDescriptor modifiedColumnFamilyDescriptor = ColumnFamilyDescriptorBuilder.newBuilder(columnFamilyDescriptor)
                .setMaxVersions(10)
                .build();

        // 修改表的描述符对象
        TableDescriptor modifiedTableDescriptor = TableDescriptorBuilder.newBuilder(tableDescriptor)
                .modifyColumnFamily(modifiedColumnFamilyDescriptor)
                .build();

        // 修改表
        admin.modifyTable(modifiedTableDescriptor);

        // 关闭连接
        admin.close();
        connection.close();
    }
}