cassandra 2 complaining about Java 7 when I have Java 7 installed

Question

$ cassandra 
Cassandra 2.0 and later require Java 7 or later.

OK, what\'s going on in that part of the init script?

java_ver_output=`\         


        

Answer 1

There appears to be a newer issue now that Java 7 update 101 has been released. I installed this version which broke Cassandra:

yum install java-1.7.0-oracle-1.7.0.101-1jpp.1.el7.x86_64

Installing a previous version (update 99) fixed the issue:

yum install java-1.7.0-oracle-1.7.0.99-1jpp.1.el7.x86_64

I'm guessing somewhere in the cassandra startup script a Regex is written for 2 characters in the update version, not 3.