[#MSITE-188] Execution order of report plugins is arbitrary if inheritance is involved

Maven 2.x Site Plugin

Execution order of report plugins is arbitrary if inheritance is involved

Created: 03/Nov/06 01:48 AM Updated: 12/Feb/08 02:23 PM

Component/s:

None

Affects Version/s:

2.0-beta-4

Fix Version/s:

None

Time Tracking:

Not Specified

Environment:

maven 2.0.4, windows 2000

Description

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I have created a maven 2 report : Dashboard report which aggregate all reports results in one report.

My plugin must be executed as the last one even if i can't bind the "post-site" phase or use the "aggregator" annotation.

I declare my report plugin as the last one in the reporting section of my POM.

When i run mvn site on a single project, it's ok, my plugin has been executed as the last one.

The reports list has been ordered as declared in my POM.

But if i run "mvn site" on a multi-project POM, the reports list isn't ordered as before.

I think, it's the same problem as http://jira.codehaus.org/browse/MNG-1994?page=all

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Benoit Xhenseval - 07/Nov/06 09:00 AM

We have exactly the same problem here....
Where does Maven determine the order for reports?

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John Allen - 23/Jul/07 12:36 PM

Execution order of plugin's is something that has had quite a bit of discussion about but I'm afraid I have no specific URLs to let you catch up with the current thinking re this.

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Danilo Eiji Seki - 12/Feb/08 02:23 PM

I noticed something strange and made a test. I suspected plugins/reports were being executed in alphabetic order (first by groupId, then by artifactId) and so they are!

For example, I have a problem generating QALab reports in child projects, because QALab plugin was always executed before the reports that generate data. Then I noticed the reports were generated almost in the order I specify them (I use the above alphabetic order, expept for the QALab plugin, that is the last one). Then I imagined that maybe that happens because all my reports are from org. groups while QALab belongs to net..

I tested it by creating a dummy plugin by renaming the groupId of a QALab report plugin to zzz.net.objectlab and deploying it to my local repository. Then I changed my root dependency to this new one and magic, IT WORKS.

I suspect someone is using a sorted collection (tree set, etc). Some display-beautifuly-list is messing things up.