Github user felixcheung commented on the pull request:
https://github.com/apache/incubator-zeppelin/pull/697#issuecomment-185996538
it looks like this might have broken the build?
```
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR]
/home/travis/build/apache/incubator-zeppelin/zeppelin-zengine/src/main/java/org/apache/zeppelin/notebook/repo/AzureNotebookRepo.java:[43,8]
org.apache.zeppelin.notebook.repo.AzureNotebookRepo is not abstract and does
not override abstract method checkpoint(java.lang.String,java.lang.String) in
org.apache.zeppelin.notebook.repo.NotebookRepo
```
https://travis-ci.org/apache/incubator-zeppelin/builds/110268133
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
