Hi, I am using some encrypt library in my code. I added the line: security.provider.3=com.sun.crypto.provider.SunJCE into the java.security file at: C:\jbuilder5\jdk1.3\jre\lib\security\java.security Then I can make any stand alone application at JBuilder in which I call the encrypt mathod in the library. But when I do the same thing in a servlet, I still can compile it correctly, but when I run it, it will give me a java.lang.nullPointerException It looks that the problem is in the encrypt, maybe I didn't set the security.provider for Tomcat correctly, how to config this? Thanks!
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