I am building a simple application that communicates through Serial Port using the Java Communication API javax.comm.
Here is some code in my java main method I wrote:
CommPortIdentifier cpi = null;
Enumeration e = CommPortIdentifier.getPortIdentifiers();
while (e.hasMoreElements()) {
try {
cpi = (CommPortIdentifier) e.nextElement();
} catch (NoSuchElementException n) {
}
System.out.println(cpi.getName());
}
Enumeration e is always empty even though I am connected to a COM 4 port when running this.
also, running this code:
portRead = CommPortIdentifier.getPortIdentifier("COM8");
cause the throw of NoSuchPortException
I think I have done the installation part correctly and placed the properties file, the win32com.dll file in the right places.
Do you know what the problem could be?
Thank You
Make sure that win32com.dll (comes with javax.com) is in the jre\bin directory. Make sure javax.comm.properties (comes with javax.com) is in the jdk\lib directory.