The cache has the same structure as the bindings and is updated
accordingly. To ensure the correctness and efficiency of the cache, more
testing has to be conducted.
The dummy class USE_PARAMETER was necessary when the IEvent interface
still existed, as void.class could not be used as a Class<? extends
IEvent>. As no explicit reference to USE_PARAMETER should be present
anywhere, a proper deprecation would've made little sense.
