in src/main/java/org/apache/maven/plugins/jmod/JModDescribeMojo.java [59:94]
    public void execute()
        throws MojoExecutionException, MojoFailureException
    {
        String jModExecutable;
        try
        {
            jModExecutable = getJModExecutable();
        }
        catch ( IOException e )
        {
            throw new MojoFailureException( "Unable to find jmod command: " + e.getMessage(), e );
        }
        getLog().info( "Toolchain in maven-jmod-plugin: jmod [ " + jModExecutable + " ]" );
        if ( !jmodFile.exists() || !jmodFile.isFile() )
        {
            throw new MojoFailureException( "Unable to find " + jmodFile.getAbsolutePath() );
        }
        Commandline cmd;
        try
        {
            cmd = createJModDescribeCommandLine( jmodFile );
        }
        catch ( IOException e )
        {
            throw new MojoExecutionException( e.getMessage() );
        }
        cmd.setExecutable( jModExecutable );
        getLog().info( "The following information is contained in the module file " + jmodFile.getAbsolutePath() );
        executeCommand( cmd, outputDirectory );
    }