Get App version from package manifest (for fatJar)

gistfile1.java

    protected Integer getBuildNumber() {
        try {
            final String version = App.class.getPackage().getImplementationVersion();
            if (StringUtils.isNotEmpty(version)) {
                try {
                    return Integer.parseInt(version.substring(version.lastIndexOf(".") + 1));
                } catch (Exception exp) {
                    logger.error("Problem parsing buildnumber from package version, returning 0", exp);
                }
            }
        } catch (Exception exp) {
            logger.error("Problem Getting version from package, returning 0", exp);
        }

        return 0;
    }

    protected String getAppVersion() {
        try {
            final String version = App.class.getPackage().getImplementationVersion();
            if (StringUtils.isNotEmpty(version)) {
                return version;
            }
        } catch (Exception exp) {
            logger.error("Problem Getting version from package, returning 0", exp);
        }

        return "0";
    }