Hello team,

I'm currently using Spring Boot 2.3.5.RELEASE and I'm trying to provide property via environment variable but the Spring boot app fails to start with the following exception:
`

APPLICATION FAILED TO START

Description:

Failed to bind properties under "vault" to com.example.relaxedbinding.Configuration:

Property: vault.token-runtime
Value: 242342
Origin: System Environment Property "VAULT_TOKEN_RUNTIME"
Reason: Failed to bind properties under 'vault' to com.example.relaxedbinding.Configuration

Action:

Update your application's configuration
`

The weird thing is that it does not fail on each run. The failure rate is 30%-ish.

Here is a link to my githup repo sample project:
https://github.com/emilnkrastev/relaxed-binding

Step to reproduce the issue:

1. export VAULT_TOKEN_RUNTIME=242342
2. mvn clean install
3. java -jar target/relaxed-binding-0.0.1-SNAPSHOT.jar
4. If it does not fail go to step 3 and try again.

Do you have an idea what is wrong with the relaxed binding?

Regards!