[MENFORCER-308] NullPointerException when using enforcer and assembly plugin in same pom.xml

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.4.1, 3.0.0-M1, 3.0.0-M2
• Component/s: Plugin
• Environment: Windows 7, JDK 1.8.0_172
• Assignee: Unassigned
• Reporter: thomas collignon
• Created: 21/Jun/18 14:02
• Updated: 12/May/21 09:02
• Resolved: 22/Jun/19 08:32

Description

Hi,

 

I got a problem when a project contain a declaration of maven-enforcer-plugin >= 1.4.1 and maven-assembly-plugin, and I think one dependency with runtime scope.

I have made a little project who reproduce the case : https://github.com/tcollignon/maven_reproduce_cases/tree/master/enforcer_and_assembly  => just run mvn clean install  and see the error :

 

$ mvn clean install
[INFO] Scanning for projects...
[INFO]
[INFO] -----------------< org.tcollignon:enforcer-assembly >-----------------
[INFO] Building enforcer and assembly reproduce case 1.0.0-SNAPSHOT
[INFO] -------------------------------[ pom ]--------------------------------
[INFO]
[INFO] — maven-clean-plugin:2.5:clean (default-clean) @ enforcer-assembly —
[INFO] Deleting D:\java\workspaces\developpement_test\maven_reproduce_cases\enforcer_and_assembly\target
[INFO]
[INFO] — maven-enforcer-plugin:1.4.1:enforce (enforce-maven-version) @ enforcer-assembly —
[INFO]
[INFO] — maven-assembly-plugin:3.1.0:single (make-assembly) @ enforcer-assembly —
[INFO] Reading assembly descriptor: zip.xml
[WARNING] Cannot include project artifact: org.tcollignon:enforcer-assembly:pom:1.0.0-SNAPSHOT; it doesn't have an associated file or directory.
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.092 s
[INFO] Finished at: 2018-06-21T15:59:17+02:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-assembly-plugin:3.1.0:single (make-assembly) on project enforcer-assembly: Execution make-assembly of goal org.apache.maven.plugins:maven-assembly-plugin:3.1.0:single 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
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=256m; support was removed in 8.0

 

I put in attach the full log in debug mode.

 

With a little debug, I can see that on runtime scope dependency this is null : Artifact#getFile, but I don't know why.

 

When I try with maven-enforcer-plugin 1.4 it works well.

I try with other version of maven-assembly-plugin and it doesn't change anything.

Issue Links

• is duplicated by: MENFORCER-318 Upgrading maven-enforcer-plugin from 1.4 to 1.4.1 or higher breaks maven-assembly-plugin