[MNG-5476] [REGRESSION] @required parameter not being enforced for arrays

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Auto Closed
• Affects Version/s: 3.0, 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.0.5, 3.1.0, 3.1.1
• Component/s: POM
• Assignee: Unassigned
• Reporter: Chris Graham
• Created: 09/May/13 23:19
• Updated: 16/Mar/18 22:39
• Resolved: 16/Mar/18 22:39

Description

For a plugin that has the following parameters defined:

    /**
     * The message flows to be added to the bar file.
     * @parameter expression="${msgFlows}"
     * @required
     */
    private String[] msgFlows;

    /**
     * The message sets to be added to the bar file.
     * @parameter expression="${msgSets}"
     * @required
     */
    private String[] msgSets;

and a pom config snippet of (note missing the msgSets):

                    <configuration>
                        <msgFlows>
                            <msgFlow/>
                        </msgFlows>
                    </configuration>

maven 2.x (2.09 and 2.2.1) will correctly fail with the following error:

[INFO] ------------------------------------------------------------------------
[ERROR] BUILD ERROR
[INFO] ------------------------------------------------------------------------
[INFO] One or more required plugin parameters are invalid/missing for 'message-broker:package-bar-file'

[0] Inside the definition for plugin 'maven-message-broker-plugin' specify the following:

<configuration>
...
<msgSets>VALUE</msgSets>
</configuration>

OR

on the command line, specify: '-DmsgSets=VALUE'

However, maven 3.x (3.0-beta-1 through to 3.0.5) do NOT enforce this.

I would expect the build to be failed in the same manner as 2.x.

Issue Links

• relates to: MNG-5001 @readonly Mojo parameter annotation doesn't work any more
• relates to: MNG-4615 [regression] @required plugin parameters are not validated
• relates to: MNG-5725 Problem with Required-Parameters and Default-Values in Nested Objects for Plugin-Parameters