New app doesn't work

I want build a App based on Nitrogen SR1 ( or Nirtogen ) version, my steps are:

1. Build a maven project with command: mvn archetype:generate -
DarchetypeGroupId=org.opendaylight.controller -
DarchetypeArtifactId=opendaylight-startup-archetype -
DarchetypeRepository=http://nexus.opendaylight.org/content/repositories
/opendaylight.release -DarchetypeCatalog=remote -DarchetypeVersion=1.4.1

2. groupId: org.opendaylight.hni
artifactId: hni

3. After build success ,I build this “hni app” with command:
Mvn clean install - DskipTests

4. After build success. I start this “hni app”’s Karaf, and feature
install hni. Then I went to see log ,
my two features: Features-hni & odl-hni-api .They are both installed.

5. But there should be “HniProvider Session Initiated” in this log file.
Cuz my code: HniProvider.init() should print these words.However,they aren’t
be printed in log file.That shows my ”hni app“ doesn't work.