@SuppressWarnings("ConstantConditions")
  private static void replaceConditional(GrConditionalExpression conditional,
                                         GrExpression condition,
                                         GrExpression then,
                                         GrExpression elze) {
    conditional.getCondition().replaceWithExpression(condition, true);
    conditional.getThenBranch().replaceWithExpression(then, true);
    conditional.getElseBranch().replaceWithExpression(elze, true);
  }
@SuppressWarnings("ConstantConditions")
  private static void replaceConditional(GrConditionalExpression conditional,
                                         GrExpression condition,
                                         GrExpression then,
                                         GrExpression elze)