Serial error management

[relaxmax01]

Hello, is there a way to detect and prevent the error "serial PI_BAD_HANDLE; unknown handle " when building a serial port with a non valid port name? for example below, if .device(myPort) is set with myport not being a valid RPI port name? (myport is read for a config file that may not be initialized. I'm trying to have a method to test the port and report status to my application before proceeding).

Serial serial = pi4j.create(Serial.newConfigBuilder(pi4j)
.use_9600_N81()
.dataBits_8()
.parity(Parity.NONE)
.stopBits(StopBits._1)
.flowControl(FlowControl.NONE)
.id(myPort) // ??
.device(myPort) // /dev/serial0 or serial1 ; use ls -l /dev/ser* to see which one is mapped to ttyS0 if using RPI UART on connector; https://forums.raspberrypi.com/viewtopic.php?t=299548#p1804496
.provider("pigpio-serial")
.build());

also what is the purpose of the .id field or how is it used?