Injection into a rule's own helper class may fail

Workaround 1: Move the methods into which the desired behaviour is to be injected into an inner class of the helper. The helper class can be loaded without needing to load the inner class and then invoke methods of the inner class to trigger the injected code. Workaround 2: Split the script into two and load in two stages. If the first script includes rules for loaded classes (i.e. not the helper) they will force loading of the helper. Loading of the rules which do contain the helper will then succeed because the class is already present so will get transformed. Workaround 3: Find some other way to ensure the helper class is loaded before loading the rules which inject into the helper.