嘗試使用RXTXcomm jar加載小程序時發生java.lang.ExceptionInInitializerError

我使用RXTXComm.jar創建了一個小程序來讀取COM端口的值。當我在Eclipse IDE中作爲applet運行applet時，它正在工作。但是當我通過我的應用程序運行它時，它在applet控制檯中發出此錯誤：嘗試使用RXTXcomm jar加載小程序時發生java.lang.ExceptionInInitializerError

java.lang.ExceptionInInitializerError thrown while loading gnu.io.RXTXCommDriver 
Exception in thread "Thread-17" java.lang.ExceptionInInitializerError 
at comPortListen.run(comPortListen.java:65) 
at java.lang.Thread.run(Unknown Source) 
Caused by: java.security.AccessControlException: access denied                    (java.lang.RuntimePermission loadLibrary.rxtxSerial) 
at java.security.AccessControlContext.checkPermission(Unknown Source) 
at java.security.AccessController.checkPermission(Unknown Source) 
at java.lang.SecurityManager.checkPermission(Unknown Source) 
at java.lang.SecurityManager.checkLink(Unknown Source) 
at java.lang.Runtime.loadLibrary0(Unknown Source) 
at java.lang.System.loadLibrary(Unknown Source) 
at gnu.io.CommPortIdentifier.<clinit>(CommPortIdentifier.java:83)

可能是什麼問題？

來源

2012-06-15 Rajesh Selvan