SpringBoot Provide a specific exception and failure analysis for situations where more than one mutually exclusive configuration property has been configured

It'd be useful for https://github.com/spring-projects/spring-boot/pull/27992.

Comment From: wilkinsona

Here's an example of the failure analysis:

***************************
APPLICATION FAILED TO START
***************************

Description:

The following configuration properties are mutually exclusive:

    spring.integration.poller.cron
    spring.integration.poller.fixed-delay
    spring.integration.poller.fixed-rate

However, more than one of those properties has been configured at the same time:

    spring.integration.poller.cron (originating from 'class path resource [application.properties] - 6:34')
    spring.integration.poller.fixed-rate (originating from 'class path resource [application.properties] - 5:40')


Action:

Update your configuration so that only one of the mutually exclusive properties is configured.