minio上传文件超过5M后文件上传报错request has multiple authentication types, please use one

minio上传文件超过5M后文件上传报错request has multiple authentication types, please use one

ErrorResponse(code = InvalidRequest, message = Invalid Request (request has multiple authentication types, please use one), bucketName = null, objectName = null,......)

解决方案：
将Content-Type由multipart/form-data换成application/octet-stream就可以解决问题了。

 (()
                    .bucket(bucketName)
                    .object(path1+"/"+fileName)
                    .stream(in, (), -1)
                    .contentType("application/octet-stream")
                    .build()
            );