Exception thrown: java.io.IOException: Bad file descriptor in nativeDrain

[adrianromeroopenbravo]

Hello I am using this library version 5.2.1 in Windows. I checked all the serial pararmeters: bauds, parity, stop bit, ... and I get the following exception and stack trace while writing to a serial port just opened.

INFO: Message out: 05
juil. 11, 2025 3:11:23 PM org.openbravo.caisse.connections.ReadWriteTaskSerial lambda$startReadWriteTask$2
SEVERE: Bad file descriptor in nativeDrain
java.io.IOException: Bad file descriptor in nativeDrain
at gnu.io.RXTXPort.nativeDrain(Native Method)
at gnu.io.RXTXPort$SerialOutputStream.flush(RXTXPort.java:1298)
at org.openbravo.caisse.connections.ReadWriteTaskSerial.lambda$startReadWriteTask$2(Unknown Source)
at java.base/java.lang.Thread.run(Thread.java:1589)

Any clue what can be the problem and how to solve it?

Thanks in advance