flutter doctor --android-licenses "Exception in thread "main" java" code example
Example 1: flutter license NoClassDefFoundError
> Tools > SDK Manager > Appareance & Behavior > System Setting> Android SDK
> SDK Tools > Android SDK Command-line Tools (apply)
flutter doctor --android-licenses
flutter doctor -v
Example 2: flutter doctor --android-licenses java error
Installing Android SDK Command-line tools from Android SDK Manager did the job for me.
Open Tools > SDK Manager
From the left choose, Appearance & Behavior > System Settings > Android SDK
Select SDK Tools from the top menu
Check Android SDK Command-line tools and click 'apply'.