To compliment the generic java.util.Properties resource loader, Solder should allow the system properties (System.getProperties()) to be injected.
Introduce @System for this purpose (to complement @Client):
@Inject @System Properties properties;
Consider naming the system properties so they can be referenced from EL.
It could then be used as:
A singular name is being suggested to be consistent with other implicit EL variables, such as initParam, param and header.