Problem using jSerialComm on ARM Raspberry Pi Zero (older Java)

[Mokrator]

i want to use jSerialComm-2.9.2.jar on my raspberry pi, where the current java version does not work. So i needed to install the arm version:

• openjdk version "1.8.0_312"
• OpenJDK Runtime Environment (build 1.8.0_312-8u312-b07-1~deb9u1-b07)
• OpenJDK Client VM (build 25.312-b07, mixed mode)

While debugging on my windows machine it works with the there installed 32bit version:

• java version "1.8.0_333"
• Java(TM) SE Runtime Environment (build 1.8.0_333-b02)
• Java HotSpot(TM) Client VM (build 25.333-b02, mixed mode, sharing)

The process fails on running either one of the next commands:

• SerialPort[] ports = SerialPort.getCommPorts();
• SerialPort p = SerialPort.getCommPort("/dev/serial0");

hs_err_pid788.log

i could not read if there are limitations to the java version or processortype - did anybody get this running?

[ghost]

Hello Mokrato, I had the same problem. The solution was to downgrade the version from 2.9.2 to 2.6.2

[hedgecrw]

@Mokrator and @schuetzp85, when you get a chance, could you please test the following beta library version and see if you are still encountering an issue:

https://www.dropbox.com/t/wOTT77tSiz50PXLd

[stikdragon]

Had a similar problem on an original Pi Zero running openjdk8:

hs_err_pid3702.log

I've just tried the beta version you linked to above and it seems to have solved it, i can enumerate ports on the system now.

[stikdragon]

Any idea when we'll get a full release of 2.9.3?

[hedgecrw]

Fixed with new release v2.9.3