code: public static void hash(@Nonnull final InstructionGroup group,
          @Nonnull final String className)
      {
          final InstructionGroupHasher groupHasher
              = new InstructionGroupHasher(group, className);
          final String name = groupHasher.hashAndGetName();
          group.setName(name);
      }
docs: Generate a hash of the group, use it to name it
  
  @param group the instruction group
  @param className this group's parent class name