[jira] (MSHARED-261) DefaultInvoker does not set M2_HOME

["Bernd Vogt (JIRA)" <ji...@codehaus.org>]

Bernd Vogt created MSHARED-261:
----------------------------------

             Summary: DefaultInvoker does not set M2_HOME
                 Key: MSHARED-261
                 URL: https://jira.codehaus.org/browse/MSHARED-261
             Project: Maven Shared Components
          Issue Type: Bug
          Components: maven-invoker
         Environment: * Win7 x64
* JDK 6
            Reporter: Bernd Vogt
         Attachments: maven-invocation-its.zip

*Problem:*
Recently, some of our releases failed because the maven-release-plugin has not re-used the Maven installation with which it was launched to perform the actual release goals. It was noticeable that the release plugin has used the Maven installation where the M2_HOME variable of the current machine has pointed to...

After some investigation, I figured out, that the DefaultInvoker doesn't propagate the Maven home directory to the M2_HOME env var of invoked Maven processes but uses the mvn.bat of those Maven. The problem ist, that mvn.bat at first looks-up for M2_HOME to launch the Maven which is located there... So, if M2_HOME is already set this takes effect and not the Maven where the invoked mvn.bat is contained in...

*Workaround for release problem:*
Configure release plugin to use the Maven executor 'forked-path' instead of 'invoke'

*Workaround when using Invoker:*
{{request.addShellEnvironment("M2_HOME", invoker.getMavenHome().getAbsolutePath());}}

*Steps to reproduce:*
# Download and unzip attached test project
# cd to unzipped folder and {{mvn clean verify}}
# Take a look at contained {{DefaultInvokerIT}}


--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://jira.codehaus.org/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira