InfluxDBResultMapper doesnt call POJO setter

It is puzzling that InfluxDBResultMapper doesnt call POJO setter.
My POJO looks like

class MyPOJO
{
    @Column(name = "time")
    private Instant time;

    //getter ignored
    public void setTime(Instant time) {  
        this.time = time.truncatedTo(ChronoUnit.SECONDS);
    }
}

Then I do something like

    final List<MyPOJO> resultEvents =  resultMapper.toPOJO(result, MyPOJO.class);

Assumption is setTime would be called for each point fetched. But it doesnt. It somehow bypasses it. time is private. Reflection in play here?
Expectation is that if I remove my setter, toPOJO call would fail. But it doesnt.

I have tried 2.17, 2.7 and 2.9 versions.