8234805: (dc) Remove JNI upcall from DatagramChannel.receive implementation
Reviewed-by: dfuchs, chegar
java.security.AccessControlException: access denied ("java.util.PropertyPermission" "user.dir" "read")
java.security.AccessControlException: access denied ("java.io.FilePermission" "foo" "read")
java.security.AccessControlException: access denied ("java.io.FilePermission" "foo" "write")