Change the java template to remove the extra new lines and spaces
in generated java code.
Bug: 280833463
Test: atest aconfig.test
Change-Id: I336050540f8a2b0966bf21cf6e034a8fa701458e
This change includes
- refactor generated java code to generate
- Flags.java to support the static API
- FeatureFlagsImpl.java to support injection API
- FeatureFlags.java interface
Bug: 279483816
Test: atest aconfig.test aconfig.test.java
Change-Id: If0d4baf317b9174635cd0fff3832ab7091ee52ed