[jira] (MNG-5598) Environment variables must be written in UPPER CASE

["Markus KARG (JIRA)" <ji...@codehaus.org>]

Markus KARG created MNG-5598:
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             Summary: Environment variables must be written in UPPER CASE
                 Key: MNG-5598
                 URL: https://jira.codehaus.org/browse/MNG-5598
             Project: Maven 2 & 3
          Issue Type: Bug
    Affects Versions: 3.0.4
         Environment: Windows
            Reporter: Markus KARG


On Windows, it is valid and common practice to defined environment variables with mixed case names, e. g. SystemDrive, SystemRoot, ProgramData, etc.

When writing this mixed case names in the POM.exe, these cannot be resolved but will be used as string literals. For example, the popular exec plugin from codehaus mojo project complains it cannot find the executable at LITERALLY ${env.MSDevDir}/Bin/MSDEV.exe, while actually that variable is defined in exactly that mixed case name, and points to the existing executable. Once MSDevDir is replaced in the (wrong!) UPPER CASE form of ${env.MSDEVDIR}, then the executable is found, which is weird!

While the MavenPropertiesGuide (http://docs.codehaus.org/display/MAVENUSER/MavenPropertiesGuide) actually only shows examples using UPPER CASE environment variables, it does not clearly say that this is an enforced restriction. Hence, either this is a bug in the Maven software (i. e. it unintentionally expects UPPER CASE), or it is to be clearly said in the properties guide that UPPER CASE is a wanted constrained of Maven.



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