Casting error when setting CASSANDRA_PORT explicitly

I get some weird auto-unboxing error when setting CASSANDRA_PORT explicitly.

I use:
```java
clientConfig.put(StormCassandraConstants.CASSANDRA_PORT, (Integer) port);
```
But somehow in Astyanax client it gets unboxed to Long, which results in a casting error.  Im using openjdk 7 on linux, but experienced the same for jdk7 on winodws.