This causes hierarchy to be runelite-client -> runelite-api and injected-client -> runescape-api -> runelite-api. The mixin injector fufills the runelite-api interface with access to the runescape-api interfaces. The mixins live in runelite-mixins and are not loaded within the client. Note the obfuscated client classes do not pass JVM verification on 7+, so the mixins are currently set to target Java 6.