I'm using Cassandra 1.2.3 on Windows, I have downloaded and copied Jna.jar and Platform.jar to C:\Program Files (x86)\apache-cassandra-1.2.3\lib , but when I run Cassandra I get this message
INFO 16:20:42,839 JNA link failure, one or more native method will be unavailable.
I didn't found any solution to fix it in Windows
Cassandra does not support JNA on windows. It only knows how to link libc, which does not exist there.