This is the exact same issue as LPS-26271, but on PortletProps class.
Plugins that call PortletProps will fail on deployment
sample-drools-portlet outputting errors when added and viewed
Wurfl-Web hot deploy results in NPE
Adding the Web Form Portlet to a page causes NPE
WSRP hot deploy results in console exception "Error Registering Portlets"
Easyconf always expects properties files to be accessible from the file system
EasyConf can only access properties files from the file system