Jeremiah Jordan; follow up cassandra_src all time

ed4fad19ecd9b02892623ffd538c0c45dcdc5a56 | Author: Yuki Morishita <yukim@apache.org>
 | 2015-08-06 22:04:54-05:00

    Fix NPE when internode compression is off
    
    patch by yukim; reviewed by Jeremiah Jordan; follow up for CASSANDRA-9884