The Log4j variation used StrSubstitutor straight from Commons (wherever it was
located at the time) but then had to modify some of the methods to accept
LogEvents.
To do this StringSubstitutor would have to be modified to be
StringSubstitutor and
allow an object of type T to be passed to the re
The log4j variable interpolation, the ${lookup:variable} type of logic is
in many places: deprecated in Commons Lang, now in Commons Text, also
implemented in Commons Configuration. We could bring in the Log4j version,
now safer than other implementations into Commons Text or a new component
and ev
