[mojo-dev] [jira] (MEXEC-151) Warn that systemProperties should *not* be used in parallel builds (mvn -T...)

[Falko Modler (JIRA)]

Title: Message Title

Falko Modler created an issue   Mojo's Exec Maven Plugin / MEXEC-151 Warn that systemProperties should *not* be used in parallel builds (mvn -T...) Issue Type: Improvement Affects Versions: 1.3.2 Assignee: Unassigned Components: java Created: 23/Jan/15 6:16 AM Priority: Major Reporter: Falko Modler The java goal is marked thread-safe which makes the user assume it is thread-safe in all usage scenarios. This does not hold true when using systemProperties! Imagine one maven thread 1 building module A executes the plugin with some property X=Y. Now imagine another maven thread 2 building module B running another plugin execution with property X=Z at the same time. In that scenarion all weird kind of things can happen: one of the threads might not "see" X at all because the other thread already restored originalSystemProperties one of the threads might "see" the value from the other execution ... There should be a clear note on this in the documentation of systemProperties. If I remember correctly it is also possible to determine whether maven is running with multiple thread via the API. This could be used to issue a warning or maybe even fail the build. Maybe there should be a property like systemPropertiesOnParallelBuild with values OK, WARN, FAIL. Add Comment   This message was sent by Atlassian JIRA (v6.1.6#6162-sha1:7af547c) --------------------------------------------------------------------- To unsubscribe from this list, please visit: http://xircles.codehaus.org/manage_email