maven 3.3.1 no longer has mvn.bat but only mvn.cmd

maven 3.3.1 no longer supports win9x and they dropped the mvn.bat executable, replacing it with mvn.cmd.

However com.atlassian.bamboo.plugins.maven.task.M3Config class in bamboo will explicitly use .bat. (5.8 branch sources) I haven't tested on a real running windows agent, but I'm assuming the 3.3.1 maven cannot be run on windows agents at the time being..

    public static String getExecutableName()
    {
        return ExecutablePathUtils.makeBatchIfOnWindows(M2_EXECUTABLE_NAME);
    }

please for details see https://jira.codehaus.org/browse/MNG-5776