Java Web应用程序：使用自定义领域

I'm writing a java web application which need to perform login through a webservice. Of course, none of the realms supplied with the application server I'm using (glassfish v2) can do the trick. I therefore had to write my own. It seems however, that the realm implementation that I wrote is completely tied to glassfish and cannot be used as is in any other application servers.I'm writing a java web application which need t