亟待解决的问题，请高手赐教！！谢谢！！

[sxj1209]

本人在jbuilder8中挑时程序时出现下列提示的错误：
D:\Program Files\jdk1.4\bin\javaw -classpath "D:\Program Files\samples\Welcome\classes;D:\Program Files\jdk1.4\demo\jfc\Java2D\Java2Demo.jar;D:\Program Files\jdk1.4\demo\plugin\jfc\Java2D\Java2Demo.jar;D:\Program Files\jdk1.4\jre\lib\charsets.jar;D:\Program Files\jdk1.4\jre\lib\ext\dnsns.jar;D:\Program Files\jdk1.4\jre\lib\ext\ldapsec.jar;D:\Program Files\jdk1.4\jre\lib\ext\localedata.jar;D:\Program Files\jdk1.4\jre\lib\ext\sunjce_provider.jar;D:\Program Files\jdk1.4\jre\lib\im\indicim.jar;D:\Program Files\jdk1.4\jre\lib\jaws.jar;D:\Program Files\jdk1.4\jre\lib\jce.jar;D:\Program Files\jdk1.4\jre\lib\jsse.jar;D:\Program Files\jdk1.4\jre\lib\rt.jar;D:\Program Files\jdk1.4\jre\lib\sunrsasign.jar;D:\Program Files\jdk1.4\jre\classes\jce-jdk13-119\classes;D:\Program Files\jdk1.4\lib\dt.jar;D:\Program Files\jdk1.4\lib\htmlconverter.jar;D:\Program Files\jdk1.4\lib\tools.jar;D:\Program Files\jdk1.4\jre\classes\jce-jdk13-119\classes\org;D:\Program Files\jdk1.4\jre\lib\ext\jce-jdk13-119\src\org\bouncycastle\jce\provider;D:\Program Files\jdk1.4\jre\lib\ext\jce-jdk13-119\src\org\bouncycastle" JCETest
java.security.NoSuchAlgorithmException: class configured for KeyPairGenerator(provider: ISNetworks)cannot be found.
com.isnetworks.crypto.rsa.KeyPairGenerator

at java.security.Security.doGetImpl(Security.java:1144)

at java.security.Security.doGetImpl(Security.java:1083)

at java.security.Security.getImpl(Security.java:1044)

at java.security.KeyPairGenerator.getInstance(KeyPairGenerator.java:195)

at JCETest.main(JCETest.java:20)

Exception in thread "main"
请问高人如何解决？是吧isnetworkprovider.java文件注册到虚拟机中还是修改java.security文件？如果是的话又改具体怎么操作呢？十分着急，请赐教！！