Deflate64 in ".jar" files?

Fri Apr 20 02:28:00 GMT 2007

Does GCJ support the compressed Deflate64 format of a jar file?
Suppose a jar file like classpath that i've compressed it as Zip Deflate64
with the graphical filemanager 7z running over wine instead of Zip Deflate.
UnZip 5.52 supports the Deflate64 format when i'm uncompressing or
checking, it works OK.
Deflate64 better then Deflate because it uses 64 KiB window instead of
32 KiB, no?
J.C. Pizarro