Doc: Spring Active Profile order of evaluation is unclear [SPR-13845]

[spring-projects-issues]

Prashant Deva opened SPR-13845 and commented

In the docs here , it is unclear what the order of evaluation of active spring profiles is:
http://docs.spring.io/spring/docs/current/spring-framework-reference/html/beans.html#beans-definition-profiles-enable

If i specify the active profiles on:

1. the 'command line' eg -Dspring.profiles.active="mango, orange" and
2. my web.xml has active profiles listed as apples

Do the final active profiles contain:

1. apples or
2. mango, orange
3. apples, mango, orange

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Affects: 4.2.4

[spring-projects-issues]

Juergen Hoeller commented

In your scenario, the active profiles will be apples, due to the servlet context property source (web.xml context-param entries) overriding system properties (as provided by the command line). Such property values do not get merged but rather completely override each other according to the property source precedence hierarchy.

I've added a corresponding paragraph to the reference documentation, summarizing the details given in StandardServletEnvironment's javadoc and related places.

Juergen