Using the library on some Android versions results in following Error:

java.lang.NoSuchMethodError: No virtual method getByte(Ljava/lang/Object;J)B in class Lsun/misc/Unsafe; or its super classes (declaration of 'sun.misc.Unsafe' appears in /system/framework/core-libart.jar)
                  at net.openhft.hashing.LongHashFunction.<clinit>(LongHashFunction.java:73)

It does work on Android 7. It seems, older Android versions do not implement full functionality of Unsafe.

Considering that Unsafe is likely to be replaced/killed off in future versions of mainline Java, you should probably move all related static constants into the UnsafeAccess and add some handling for situations when it is not available.