Reading file from assets directory throws FileNotFoundException
Check whether the file was properly packaged in the assets folder inside the .apk file. (It can be browsed as a zip file. Rename it if necessary to look inside.)
on Maven, the Assets folder needs to be inside projectName/ not inside projectName/src/main as suggested in other examples.
Source:
http://jayway.github.io/maven-android-plugin/generate-sources-mojo.html