Jedis stores Redis server password as a String. Both ["Java Cryptography Architecture guide" ](http://docs.oracle.com/javase/6/docs/technotes/guides/security/crypto/CryptoSpec.html#PBEEx) and ["Secure Coding Guidelines for Java SE"](http://www.oracle.com/technetwork/java/seccodeguide-139067.html#2) recommend that sensitive information be stored in char array instead of a String.