mvnw now looks for absolute path

[rahlk]

    private static final String MAVEN_CMD = BuildProject.getMavenCommand();
    private static String getMavenCommand() {
        Boolean isWindows = System.getProperty("os.name").toLowerCase().contains("windows");
        String mvnCommand;
        if (isWindows) {
            mvnCommand = new File(projectRootPom, "mvnw.bat").exists() ? String.valueOf(new File(projectRootPom, "mvnw.bat")) : "mvn.bat";
        } else {
            mvnCommand = new File(projectRootPom, "mvnw").exists() ? String.valueOf(new File(projectRootPom, "mvnw")) : "mvn";
        }
        return mvnCommand;
    }