I have an installation defined with the property force.url.secure=443 in sakai.properties
I also have a local.properties and security.properties file for specific overrides.
On a particular instance I want to disable the force secure setting as I am running http only.
However there is no way to do that. If I set the value to a blank value (in local or security.properties, ie as an override) in an attempt to clear it, then it throws a NumberFormatException.
So once the setting has a value it must always have a value, AND forces URLs to be https. The code should be adjusted so that a blank value negates any previous value that has been set.