Authentication is required but no CredentialsProvider has been registered

参考
在使用JGit执行push命令时，遇到了如下错误：
Authentication is required but no CredentialsProvider has been registered
经查询后得知：git执行push命令时，需要配置git 用户名密码进行安全链接，
JGit中执行的操作如下： git.push().setCredentialsProvider(new UsernamePasswordCredentialsProvider(username, password));