Dmitry Kichinsky opened MNG-8477 and commented

Reproducer project (attached)
In a multi-module project with a parent POM ({}project{}) and two child modules ({}m1{} and {}m2{}), the parent POM defines a profile named "xxx" that is activated by the presence of a file ({}src/io.properties{}). The file triggering the profile ({}io.properties{}) is placed under {}m2/src/{}, satisfying the activation condition in {}m2{}. 

Steps to reproduce
In Maven 4.0.0-rc-2, running mvn help:active-profiles correctly identifies the "xxx" profile as active.

Active Profiles for Project 'test:m2:jar:1':

The following profiles are active:

 - xxx (source: test:m2:jar:1)

However, when running  {}mvn help:active-profiles -Dmaven.modelBuilder.parallelism=1{}, the "xxx" profile fails to activate.

Active Profiles for Project 'test:m2:jar:1':

The following profiles are active: 

Affects: 4.0.0-rc-2

Attachments:

• project.zip (1.91 kB)

Remote Links:

• GitHub Pull Request #2062