# Platform compat tools Tools for Android App Compat (go/android-compat). ## What's in here? ``` ├── build # python helper scripts for build ├── java # All Java source files; directories follow corresponding java packages │   └── android │   ├── compat │   │   └── annotation # Annotations used for go/compat-framework and go/unsupportedappusage │   └── processor │   └── compat # Java annotation processors for annotations defined in src/ │   ├── changeid # Creates compat_config xml files from @ChangeId constants │   └── unsupportedappusage # Creates csv files with source positions for @UnsupportedAppUsage elements └── javatest # Tests for source files defined under java/ ```