Executor executor = new Executor(new String[]{ctagsBinary, "--version"});
        executor.exec(false);
        String output = executor.getOutputString();
        boolean isUnivCtags = output != null && output.contains("Universal Ctags");
        if (output == null || !isUnivCtags) {
            LOGGER.log(Level.SEVERE, "Error: No Universal Ctags found !\n"
                            + "(tried running " + "{0}" + ")\n"
                            + "Please use the -c option to specify path to a "
                            + "Universal Ctags program.\n"
                            + "Or set it in Java system property {1}",
                    new Object[]{ctagsBinary, SYSTEM_CTAGS_PROPERTY});
            return false;
        }

ctags

Universal Ctags Development, Copyright (C) 1996-2009 Darren Hiebert