Java Comm Problem

Java Communication problem on Windows
Almost Java Comm on Window can not open comport
solution to fix this problem is add this code

String driverName = "com.sun.comm.Win32Driver"; // or get as a JNLP property
CommDriver commDriver = (CommDriver)Class.forName(driverName).newInstance();
commDriver.initialize();

or see http://en.wikibooks.org/wiki/Serial_Programming:Serial_Java