ReflectionProtoGenerator throws missing field exception on methods that looks like getter or setter

ReflectionProtoGenerator throws missing field exception on methods that looks like getter or setter but without a backing field, below example should trigger the exception.

public class Person {
    private String id;

    public String getId() {
        return id;
    }
    public void setId(String id) {
        this.id = id;
    }
    // seeks for idBytes field throwing IllegalArgumentException
    public byte[] getIdBytes() {
        return id.getBytes();
    }
}

Could be handled by renaming the problematic method but sometimes the POJO is extended from a third party library or even from base java classes.