sun.misc.Unsafe can't be used anymore?

[hgForAndroid]

I used this maven jar for test,and I found that in my Android Stuidio,FastCast can't get his singleton anymore,and the reason is that in FSTUtil,the package sun.misc.Unsafe can't be import.When I google for this,it seems that this class that can't manipulate memory may be duplicated by Oracle.So I wonder if there are something that can take place of it?Thanks for you reply.Best Wishes.

[RuedigerMoeller]

do not use multicast messaging on a cell phone ;)