private void print2( ) {
      for( int i=0; i<_keys.length; i++ ) {
        long K = _keys[i];
        if( K != NO_KEY )       // key is sane
          print2_impl(i,K,_vals[i]);
      }
      CHM newchm = _newchm;     // New table, if any
      if( newchm != null ) {
        System.out.println("----");
        newchm.print2();
      }
    }
Auto-boxing version of {@link #replace}.
jctools-core/src/main/java/org/jctools/maps/NonBlockingHashMapLong.java