code: package org.pitest.rv.config;
  
  import org.pitest.mutationtest.engine.gregor.MethodMutatorFactory;
  import org.pitest.mutationtest.engine.gregor.config.MutatorGroup;
  
  import java.util.List;
  import java.util.Map;
  
  public class RVMutatorGroups implements MutatorGroup {
      @Override
      public void register(Map<String, List<MethodMutatorFactory>> mutators) {
          /*
           * mutators that mutate binary arithmetic operations.
           */
          mutators.put("AOR", gather(mutators,"AOR1", "AOR2", "AOR3", "AOR4"));
  
          /*
           * mutators that replace a binary arithmetic operations with one of its members.
           */
          mutators.put("AOD", gather(mutators,"AOD1", "AOD2"));
  
          /*
           * mutators that replace an inline constant a with 0, 1, -1, a+1 or a-1 .
           */
          mutators.put("CRCR", gather(mutators,"CRCR1", "CRCR2", "CRCR3", "CRCR4",
                  "CRCR5", "CRCR6"));
          /*
           * mutators that replace an bitwise ands and ors.
           */
          mutators.put("OBBN", gather(mutators,"OBBN1", "OBBN2", "OBBN3"));
  
          /*
           * mutators that replace conditional operators.
           */
          mutators.put("ROR", gather(mutators,"ROR1", "ROR2", "ROR3", "ROR4", "ROR5"));
  
          /*
           * mutators that insert increments.
           */
          mutators.put("UOI", gather(mutators,"UOI1", "UOI2", "UOI3", "UOI4"));
      }
  }
  