Didn't see this coming: The Goldman Sachs Github Account
  ...
  import com.gs.collections.impl.block.factory.Comparators;
  import com.gs.collections.impl.block.factory.Functions;
  import com.gs.collections.impl.block.procedure.CollectionAddProcedure;
  import com.gs.collections.impl.collection.mutable.AbstractCollectionAdapter;
  ...

Gees, I feel sorry for people still stuck using Java.