How to activate / inactivate Portlet in LIferay

1. Login as Liferay Administrator

2. Navigate to Plugins Configuration
    Control Panel > Apps > Plugins Configuration

3. Click on 1 of the plugin from the list, eg. Documents and Media

4. untick the "Active" checkbox.

5. Save.

With these steps, the Documents and Media portlet/plugin has been deactivated.

Done!!

How to get size of a java collection in xhtml

Basically there are 2 ways to get the size of a collection / list in xhtml.
1. jstl function

#{ fn:length(myList) }

2. call the size() function directly

#{ myList.size() }

Done!!