hg: jdk/submit: 8212669: Add note to Cipher javadoc about using full transformation and not relying on defaults

[sean.mullan at oracle.com]

Changeset: 7b20c27b2ccb
Author:    mullan
Date:      2018-11-01 16:53 -0400
URL:       http://hg.openjdk.java.net/jdk/submit/rev/7b20c27b2ccb

8212669: Add note to Cipher javadoc about using full transformation and not relying on defaults
Reviewed-by: xuelei

! src/java.base/share/classes/javax/crypto/Cipher.java