SRMulticast at 31 Jan 2019 23:36:14

<img src="https://jenkins.onosproject.org/view/QA/job/postjob-Fabric2/lastSuccessfulBuild/artifact/SRMulticast_onos-1.15_20-builds_graph.jpg", alt="SRMulticast", style="width:525px;height:350px;border:0">
commit 1baa550e3327039ecafcaf8c5936983f42fe8d3e (HEAD -] onos-1.15, origin/onos-1.15)
Author: Jian Li [pyguni@gmail.com]
AuthorDate: Fri Feb 1 10:14:34 2019 +0900
Commit: Jian Li [pyguni@gmail.com]
CommitDate: Fri Feb 1 11:06:53 2019 +0900

Fix: resolve potential NPE issues reported by sonarcube

Case 1: Create a Multicast flow between a source and sink on the same dual-tor leaf - PASS

Case 2: Create a Multicast flow between a source and sink on different dual-tor leaves - PASS

Case 3: Create a Multicast flow between a source and sink on different leaves (sink on single-tor) - PASS

Case 4: Combines CASE1 and CASE2 - PASS

Case 5: Combines CASE2 and CASE3 - PASS

Case 6: Combines CASE1 and CASE3 - PASS

Case 7: Combines CASE1, CASE2 and CASE3 - PASS

Case 8: Use all of the four sinks - PASS

Case 101: Combines CASE8 with a link failure (link ingress-spine) - PASS

Case 102: Combines CASE8 with a link failure (link spine-engress-dt-leaf) - FAIL

Case 103: Combines CASE8 with a link failure (link spine-engress-st-leaf) - PASS

Case 104: Combines CASE8 with a link failure (link spine-engress-st-leaf-2) - FAIL

Case 105: Combines CASE8 with a link failure (link dt-leaf-sink) - PASS

Case 106: Combines CASE8 with a link failure (link dt-leaf-sink-2) - FAIL