Problem with RXTX in Windows

[newbie29]

Hi,

I'm trying Dan O'Sullivan's example program from http://stage.itp.nyu.edu/~dano/cgi/C...ff=1&id=Serial . I'm running Java 1.5 in Windows.

I installed the RXTX windows files into the following: rxtxParallel.dll and rxtxSerial.dll into (jdk1.5 location)\jre\lib and the RXTXcomm.jar file into (jdk1.5 location)\jre\lib\ext .

Unfortunately, I get the following error when I compile the code after changing to "import gnu.io.*;" :

java.lang.UnsatisfiedLinkError: no rxtxSerial in java.library.path thrown while loading gnu.io.RXTXCommDriver
Exception in thread "main" java.lang.UnsatisfiedLinkError: no rxtxSerial in java.library.path
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1682)
at java.lang.Runtime.loadLibrary0(Runtime.java:822)
at java.lang.System.loadLibrary(System.java:992)
at gnu.io.CommPortIdentifier.<clinit>(CommPortIdentifier.java:83)
at physcompserialdemo.PhysCompSerialDemo.main(PhysCompSerialDemo.java:26)
Java Result: 1

I have no idea what this error means. Please if you have any ideas or know how to solve this problem, please let me know.

Thanks,
C29

[newbie29]

Fixed.

put rxtxparallel.dll and rxtxserial.dll into c:/program files/java/jdk1.5.0_02/jre/bin
put rxtxcomm.jar into c:/program files/java/jdk1.5.0_02/jre/lib/ext

Thanks anyways,
N29

[Taurus82]

Hi,
i have a problem similar to your.
I am developing an application, using javacomm, that uses a serial port to send sms though a gprs modem.
The problem is that i can connect to the serial port, but i cant send AT Commands like ATA or ATDT+phonenumber, it doesnt work.

Can you help me please?

Thanks, Cristian

[abarnea_2000]

Attach software www.cajoon.com to your Java environment (J2SE, J2EE) and get 'root-cause' for every exception automatically . . .

[shimon001]

Hi,

I'm trying Dan O'Sullivan's example program from http://stage.itp.nyu.edu/~dano/cgi/C...ff=1&id=Serial . I'm running Java 1.5 in Windows.

I installed the RXTX windows files into the following: rxtxParallel.dll and rxtxSerial.dll into (jdk1.5 location)\jre\lib and the RXTXcomm.jar file into (jdk1.5 location)\jre\lib\ext .

Unfortunately, I get the following error when I compile the code after changing to "import gnu.io.*;" :

java.lang.UnsatisfiedLinkError: no rxtxSerial in java.library.path thrown while loading gnu.io.RXTXCommDriver
Exception in thread "main" java.lang.UnsatisfiedLinkError: no rxtxSerial in java.library.path
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1682)
at java.lang.Runtime.loadLibrary0(Runtime.java:822)
at java.lang.System.loadLibrary(System.java:992)
at gnu.io.CommPortIdentifier.<clinit>(CommPortIdentifier.java:83)
at physcompserialdemo.PhysCompSerialDemo.main(PhysCompSerialDemo.java:26)
Java Result: 1

I have no idea what this error means. Please if you have any ideas or know how to solve this problem, please let me know.

Thanks,
C29

If you are using NetBeans, you have too put your .dll libraries (rxtxParallel.dll, rxtxSerial.dll) into WINDOWS/system32 folder. Worked fine for me.

Good luck.

[ykf2000]

Hi,

We are using RXTX to connect to the COM port but is getting the following error

gnu.io.PortInUseException: TestApplication
at gnu.io.CommPortIdentifier.open(CommPortIdentifier.java:339)
at Simple.init(Simple.java:23)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)


Anyone can help?

[jkumar.ooty]

Did you get a solution?