[CX] java.lang.NullPointerException shown when there is no feed and queries

***Installed latest build according to instructions on https://github.com/couchbaselabs/asterix-opt

on a centos-6 machine using wget command.

Downloaded asterix-server-0.8.9-SNAPSHOT-binary-assembly.zip

***Started the cluster:

[root@slv-s20301_c cbas-install]# ./samples/local/bin/start-sample-cluster.sh

java version "1.8.0_45"

Java(TM) SE Runtime Environment (build 1.8.0_45-b14)

Java HotSpot(TM) 64-Bit Server VM (build 25.45-b02, mixed mode)

CLUSTERDIR=/root/cbas-install/samples/local

INSTALLDIR=/root/cbas-install

Waiting for cluster to start..done

***Before creating and connecting feed, I opened: 

http://<hostname>:19002/query/service 

I see:

HTTP ERROR: 500

Problem accessing /query/service. Reason:

    java.lang.NullPointerException

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as shown in screenshot which is attached to this bug.