We analyze the five remaining AES candidate algorithms MARS, RC6, Rijndael, Serpent, and Twofish as well as DES, Triple DES, and IDEA by examining independently developed Java implementations. We give performance measurement results on several platforms, list the memory requirements, and present a subjective estimate for the implementation difficulty of the algorithms. Our results indicate that all AES ciphers offer reasonable performance in Java, the fastest algorithm being about twice as fast as the slowest.