Trouble in serial java program on linux

[suryawati]

Dear All,

I am running a java serial program ( Black Box on commapi package ) on a Linux. But when Main Menu can displayed, automatically program stop for running and I can't do anything with what's displayed, for examples: the button can't be pressed, the combo box can't be schrolled, etc. One thing that make me confused is threre's no error message at all, with all of happened.

I had done somethings like :
- put jar.com file on dir: usr/java/jdk/jre/lib/ext
- put javax.comm.properties file on dir: usr/java/jdk/jre/lib
- put libLinuxSerialParallel_g.so and libLinuxSerialParallel.so on dir: usr/lib
- set path on usr/java/jdk/bin
- set java home on usr/java/jdk

I had checked my current java with "which java" command and the result is suitable with path set.

I ran the Black Box program with command :
java -Djava.library.path=/usr/lib Black Box

where dir /usr/lib is directory that files .so located and Black Box is a class file name that is executed.

My question is : what's the trouble?? Is there in connection with respond rate of operating system that I used, because when my Black Box is executed on windows platform, the result is running and respond well.

My computer spec : Intel Pentium 4 with RAM 128 MB (but i'm not suggested that it's the reason).

Could somebody help me? I'll wait for your respond to solve the trouble, soon. Thanks a lot.

regards,
Endang Suryawati

[JosAH]

I had a lot of trouble trying to run Sun's old comm API on linux boxes. It did run
fine (although a bit slow) on Windows boxes. Finally I replaced it all with the
RXTX package and all ran fine within a couple of minutes.

The RXTX API is identical to Sun's version; it just uses different package names.

kind regards,

Jos

[suryawati]

Yup, Black Box sample is the only one that i'm sure it can running well anytime. The fact it can run on other computer, but when it runs on my computer is not running.

The first, I'm not sure about RXTX, but now I'll try to download and implement RXTX API for running my java serial application.

Thanks JosAH,

regards,
endang

I had a lot of trouble trying to run Sun's old comm API on linux boxes. It did run
fine (although a bit slow) on Windows boxes. Finally I replaced it all with the
RXTX package and all ran fine within a couple of minutes.

The RXTX API is identical to Sun's version; it just uses different package names.

kind regards,

Jos

[JosAH]

I just remembered: that BlackBox example needs to be edited a bit because the
names of the serial ports are different on both OSes: Windows: COM1 Linux: /dev/ttyS

Look at the source code, you'll see it immediately.

kind regards,

Jos