Hi Everybody! I just got an issue with JBoss and JCE (Java Cryptography Extension) Basically everytime the following line of code is executed Cipher cipher = Cipher.getInstance("DES"); the following exception is launched java.lang.ClassCastException: com.sun.crypto.provider.DESCipher Now, I'm using JBoss 4.2.0GA and JDK 1.5 Please, could you give me some hints about how to resolve it? Thanks in advance -- Gerardo Velez p.s: I'm using maven2 as a build tool to construct ear file