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b]can one of you help me in this problem , i have to communicate with serial port , i find this error

java.lang.NoClassDefFoundError: javax/comm/CommDriver thrown while loading gnu.io.RXTXCommDriver
Exception in thread "AWT-EventQueue-0" java.lang.UnsatisfiedLinkError: no rxtxSerial in java.library.path
i tried to put rxtxcomm.jar in /jre/lib/ext and librxtxserial-2.so in /jre/lib/i386/ but still have some problem
please help and thanks in advance

You canonot serial communicate with one computer. Please, therefore, describe both machines, processors, architecture, what software you are using to communicate, and how you have hooked up the devices (cabling).