writing a common service to get user details by username as below:

package com.pustaknotika.common;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.env.Environment;
import org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate;
import org.springframework.stereotype.Repository;

import com.pustaknotika.users.mapper.UsersRowMapper;
import com.pustaknotika.users.pojo.Users;


@Repository("CommonServices")
public class CommonservicesImpl implements ICommonservices {
    
    private static Logger LOGGER = LoggerFactory.getLogger(CommonservicesImpl.class);

    @Autowired
    private NamedParameterJdbcTemplate jdbcTemplate;

    @Autowired
    private Environment env;

    
    @Override
    public Users getUserByUserName(String userName)
    {
        
        LOGGER.info("{}", env);
        String sql= env.getProperty("GET_USERDETAILS");
        Map<String, Object> args = new HashMap<String, Object>();
        args.put("UserName", UserName);
        Users user = null;
        List<Users> lstUsers = null;
    
        try {
             lstUsers = jdbcTemplate.query(sql, args, new UsersRowMapper());
            
            // logger
            LOGGER.info("{} USer(s) Selected", lstUsers.size());
            
        }catch (Exception e) {
            
            e.printStackTrace();
            
        }
        
        if (lstUsers.size()>0) {
            user = lstUsers.get(0);
        }
        
        return user;
    }

}

When i call this service, I am facing error

java.lang.NullPointerException: Cannot invoke “org.springframework.core.env.Environment.getProperty(String)” because “com.pustaknotika.common.CommonservicesImpl.env” is null

What am i missing here

i could try multiple options but nothing worked out.