code: public void setParamWithProperty(int param, boolean hasProperty) {
          if (param < 0 || param > 31) {
              return;
          }
          if (hasProperty) {
              bits |= (1 << param);
          } else {
              bits &= ~(1 << param);
          }
      }
docs: Set whether or not a parameter might be non-null.
  
  @param param
  the parameter index
  @param hasProperty
  true if the parameter might be non-null, false otherwise