package Ġio . jav al in . core . plugin Ċ Ċ import Ġjava . lang . RuntimeException Ċ Ċ data Ġclass ĠPlugin Already Registered Exception ( val Ġplugin Class : ĠClass < out ĠPlugin >) ĊĠĠĠ Ġ: ĠRuntimeException ("${ plugin Class . canonical Name } Ġis Ġalready Ġregistered ") Ċ