I have faced problems in trying to install new portlets to Liferay running on Glassfish domain. I figured out the flow very lately and want to share it with others also. So, please read the answer and hope this helps someone :)
(Pre requisites for the problem is that I knew that adding projects running on Glassfish is done with a autodeploy folder, but making them visible on Liferay was another story.)
So, you make first a .war file let's say a portlet of name your_file.war. You wanna have it running on a glassfish domain under Liferay portal.
Steps to success:
1) Navigate to Control Panel -> Plugins Installation on Liferay
2) hit Install new portlets
3) hit Configuration
4) Fill in to Deploy Directory
a new place for deployment let's say [your domain]/autodeploy2
5) Check that in the next line target is [your domain]/autodeploy (it is the Glassfish default deployment directory)
6) hit save
Now deployment will be done by copy pasting files to that new directory [your domain]/autodeploy2. The rest of it is handled automatically. Setting takes action imediatedly.
Done with deployment: Make a victory jig and enjoy :)
..you stop dancing and face a bug. You want a new revision to be deployed.. In this case, continue reading.
So, you have built your war again and want to re-deploy. Do the following:
1) undeploy old stuff from (your domain)/autodeploy folder by deleting the war file. Don't delete any other file.
2) result is that your_file.war_UnDeployed file will appear.
3) deploy new file by copying the newly built war in (your domain)/autodeploy2 folder.
4) result is that your_file.war_deployed will appear in (your domain)/autodeploy folder.
Make a dance again :)