exec-maven-plugin says cannot run specified program, even though it is on the PATH

Question

Edit 20140716:

Solution found

tl;dr = exec-maven-plugin does not recognise .cmd files, but only .bat file

Answer 1

In addition to bguiz' answer, which would be the best solution, I've created a workaround using Maven profiles, bypassing the problem.

This is a temporary solution, until the maven-exec-plugin's bug gets fixed.

Please upvote the bug report here: http://jira.codehaus.org/browse/MEXEC-118

Edit: The bug is resolved, you can point to 1.4-SNAPSHOT to fix it.

(...)
    
        
            grunt-exec-windows
            
                
                    Windows
                
            
            
                
                    
                        org.codehaus.mojo
                        exec-maven-plugin
                        ${exec-maven-plugin.version}
                        
                            
                                grunt-default
                                generate-resources
                                
                                    cmd
                                    
                                        /C
                                        grunt
                                    
                                
                                
                                    exec