The Ansible tests are failing when they run the client to do logs:get because JAVA_HOME env var isn't set.

TASK [get log levels] ********************************************************** fatal: [localhost]: FAILED! => {"changed": true, "cmd": ["/opt/opendaylight/bin/client", "log:get"], "delta": "0:00:03.168952", "end": "2019-02-19 09:03:27.697629", "msg": "non-zero return code", "rc": 1, "start": "2019-02-19 09:03:24.528677", "stderr": "Closed", "stderr_lines": ["Closed"], "stdout": "client: JAVA_HOME not set; results may vary", "stdout_lines": ["client: JAVA_HOME not set; results may vary"]} to retry, use: --limit @/w/workspace/packaging-ansible-test-rpm-master/packaging-ansible/tests/test-odl-logs.retry