LZ4 compression library in Android app

How to use LZ4 compression library in Android app ...

The main problem I am facing is when I try to export a signed app package, the error that comes up is this

Warning: net.jpountz.util.UnsafeUtils: cannot find reference class sun.misc.Unsafe

When I run the application directly on my device there is no problem, this error only occurs when I try to export the application.