[MPH-143] The maven-help-plugin generates null pointer for multi-module project

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 3.0.0
• Component/s: effective-pom
• Environment: windows and linux with maven 3.2.5
• Assignee: Unassigned
• Reporter: Damien
• Created: 20/Mar/18 14:00
• Updated: 22/Mar/18 21:48
• Resolved: 22/Mar/18 21:48

Description

The maven-help-plugin in version 3.0.0 generates a null pointer exception for multi-module projects when the parameter "output" is set.

The following command failed

mvn help:effective-pom -Doutput=myoutput.xml

with the error

[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.187 s
[INFO] Finished at: 2018-03-20T14:52:19+01:00
[INFO] Final Memory: 24M/403M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-help-plugin:3.0.0:effective-pom (default-cli) on project OFRPDVC001: Execution default-cli of goal org.apache.maven.plugins:maven-help-plugin:3.0.0:effective-pom failed. NullPointerException -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginExecutionException

It doesn't happen with the previous versions, the following command helps to prove it :

mvn org.apache.maven.plugins:maven-help-plugin:2.2:effective-pom -Doutput=myoutput.xml

 

Issue Links

• duplicates: MPH-135 help:effective-pom crashes with NPE in multi module builds with -Doutput set