import java.lang.Runtime class Cls { public fun test1(plainText: String): Array { // ruleid: no-null-cipher val doNothingCipher: Cipher = NullCipher() //The ciphertext produced will be identical to the plaintext. val cipherText: Cipher = doNothingCihper.doFinal(plainText) return cipherText } public fun test2(plainText: String): Void { // ok: no-null-cipher val cipher: Cipher = Cipher.getInstance("AES/CBC/PKCS5Padding") val cipherText: Array = cipher.doFinal(plainText) return cipherText } }