fix scala app test can not download data issue

[pinggao187]

Description

unzip: cannot find or open tmp/data/object-detection-coco.zip, tmp/data/object-detection-coco.zip.zip

1. Why the change?

2. User API changes

3. Summary of the change

4. How to test?

• [ ] N/A
• [ ] Unit test
• [ ] Application test
• [ ] Document test
• [ ] ...

5. New dependencies

• [ ] New Python dependencies - Dependency1 - Dependency2 - ...
• [ ] New Java/Scala dependencies and their license - Dependency1 and license1 - Dependency2 and license2 - ...