AWS CodeCommit HTTPS access without setting up credential helper

We are transitioning from GitHub to AWS CodeCommit to have a tightly integrated environment.

One need is to access one repository through HTTPS. This repo is accessed ny Spring Cloud Config Server product that uses jgit to read the repo and clone the files for its use.

AWS CodeCommit apparently requires the use of the credential helper when connecting through HTTPS, but I don't the setup to be like that. I want a user and password setup that jgit can use without the need to generate a temp credential using the credential helper. Any way to accomplish this?

Is there any way to configure CodeCommit to access a fixed user and password to access the repository through HTTPS?