[MNG-6368] Maven 3.5.2 breaks the Maven Invoker Plugin on Windows

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Incomplete
• Affects Version/s: 3.5.2
• Environment: Windows 7 ; run from cygwin with January 2017 updates
• Assignee: Unassigned
• Reporter: Gene Smith
• Created: 28/Feb/18 22:00
• Updated: 16/Apr/20 21:14
• Resolved: 16/Apr/20 21:14

Description

I found a work around (credit Robert Scholte's quetion for the clue)..

• make sure all files in $MAVEN_HOME/bin are executable**

Maven 3.5.2 will not tell you why maven-invoker-fails if it can't find an executable.

...................

With Maven 3.5.2 on Windows 7,. the Maven Invoker Plugin breaks:

• reporting
  The Maven invocation failed. Error while executing process.
• leaving empty log files, and streaming nothing from the invoked process

I have multiple uses in a large project, which have has been working for us through many version of Maven.  They all break, on Windows with:

• a simple clean attempt to upgrade to Maven 3.5.2.
  (without changing any plugin versions)
• a complex upgrade attempt, advancing forward as many plugin versions as can be pushed.

The complex upgrade attempt works with Maven 3.5.0.

And on testing to isolate it, Maven 3.5.2 + Maven Invoker Plugin 2+ breaks even in simplest form invoking:

• an empty jar project with no inheritance
• an empty pom project with no inheritance
• an empty jar project with direct inheritance from the invoker
• an empty pom project with direct inheritance from the invoker

The attached zip very simple test project, which

• works with:
  • Maven 3.0.5, 3.1.1, 3.2.1, 3.3.3, 3.3.9
    • maven-invoker-plugin 1.6, 1.7, 1.8, 1.9, 2.0.0, 3.0.0, 3.0.1
  • Maven 3.5.0
    • maven-invoker-plugin 2.0.0, 3.0.0, 3.0.1
• breaks with:
  • Maven 3.5.2
    • maven-invoker-plugin 1.6, 1.7, 1.8, 1.9, 2.0.0, 3.0.0, 3.0.1

I looked through sources and was able to test with this built locally (but my task is timeboxed and I have not been able to get Maven built from sources in the time I have):

• http://svn.apache.org/repos/asf/maven/plugins/tags/maven-invoker-plugin-3.0.1

and traced it as far as the call to:

• org.apache.maven.shared.invoker.Invoker

                try
               

{                     result = invoker.execute( request );                 }

                catch ( final MavenInvocationException e )
               

{                     getLog().debug( "Error invoking Maven: " + e.getMessage(), e );                     throw new RunFailureException( "Maven invocation failed. " + e.getMessage(),                                                    BuildJob.Result.FAILURE_BUILD );                 }

but it invoker hides all trace, and I do not have time (I am time boxed this week) to get Maven built from sources to trace it into the Invoker.