Including quorum config when standalone leads to crash
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                 Key: ZOOKEEPER-680
                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-680
             Project: Zookeeper
          Issue Type: Bug
          Components: server
    Affects Versions: 3.2.2
         Environment: RHEL
            Reporter: Vegard B. Havdal
            Priority: Minor


Include server.#=... and/or a myid file when running standalone, zk server will 
crash with
java.lang.NullPointerException
   at 
org.apache.zookeeper.server.quorum.FastLeaderElection.totalOrderPredicate(FastLeaderElection.java:466)
   at 
org.apache.zookeeper.server.quorum.FastLeaderElection.lookForLeader(FastLeaderElection.java:635)
   at org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:515)

Seen when running zk embedded in other server, using
String[] args = new String[]{zookeeperCfgFile};
org.apache.zookeeper.server.quorum.QuorumPeerMain.main(args);

The workaround is of course to fix the config, but 3.1.1 managed to not crash 
on this.

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