Commas in spring.config.import split config data location rather than act as profile separator

Hi

I tried to use Spring Config Import feature that appeared in Spring Boot 2.4. It works fine without Spring profiles but if I tried to use a profile then errors are present.

The documentation for Spring Cloud Consul Config states that if you want to use profiles you should create similar folders structure in Consul:

config/testApp,dev/
config/testApp/
config/application,dev/
config/application/

I want to use default and prod profiles in my Spring Boot application. So I created two root folders in Consul:

• app
• app,prod

If I try to specify app and app,prod folder in my application-prod.yml:

spring:
  config:
    import: "consul:localhost:8500;app;app,prod"

Then I get the exceptions:

java.lang.IllegalStateException: Unable to load config data from 'prod'
	at org.springframework.boot.context.config.StandardConfigDataLocationResolver.getReferences(StandardConfigDataLocationResolver.java:125)
Caused by: java.lang.IllegalStateException: File extension is not known to any PropertySourceLoader. If the location is meant to reference a directory, it must end in '/'
	at org.springframework.boot.context.config.StandardConfigDataLocationResolver.getReferencesForFile(StandardConfigDataLocationResolver.java:200)
	at org.springframework.boot.context.config.StandardConfigDataLocationResolver.getReferences(StandardConfigDataLocationResolver.java:122)

If omit the last folder:

spring:
  config:
    import: "consul:localhost:8500;app"

then configuration is loaded properly. Please advise on this issue.

Start by reproducing the import in application-prod.yml with both app and app,prod Consul locations. Read the failure path named in StandardConfigDataLocationResolver.java and compare it with the documented Consul folder structure. Done means comma-containing locations are treated as intended profile paths and the existing single-location case still loads correctly.