Cannot find symbol - XStream xstream = new XStream();

Hello everyone! :D I'm currently working on something that can load 'configuration' (some kind of cache) via. XML files.
To do so I made a instance of the Object class:
    public static Object load(File file)
        try
            InputStream is = new GZIPInputStream(new FileInputStream(file));
            Object rv = xstream.fromXML(is);
            return rv;
        catch (IOException ioe) {
            System.err.println(ioe.getMessage());
        return null;
    }And I have initialized the XStream class like this: private final static XStream xstream = new XStream();And yes I have imported this: import com.thoughtworks.xstream.XStream;But still I get this annoying error...
I store the xstream.jar in a folder named lib. (Together with some other JAR's like: xpp3, mina, hex-string and such things).
If you need more of my code just tell me and I'll post.

I do know that I don't need code but i need to use the javac.exe program. But I don't get a (s)(h)(i)(t) of how I can add my lib folder to the compiler, in a classpath. But here's what my compiler says: DataConversions.java:3: package com.bombaydigital.vault does not exist
import com.bombaydigital.vault.HexString;
                              ^
PersistenceManager.java:6: package com.thoughtworks.xstream does not exist
import com.thoughtworks.xstream.*;
^
PersistenceManager.java:10: cannot find symbol
symbol  : class XStream
location: class org.rscdaemon.client.util.PersistenceManager
    public static XStream xstream = new XStream();
                  ^
DataConversions.java:279: cannot find symbol
symbol  : variable HexString
location: class org.rscdaemon.client.util.DataConversions
        return HexString.bufferToHex(md.digest());
               ^
PersistenceManager.java:10: cannot find symbol
symbol  : class XStream
location: class org.rscdaemon.client.util.PersistenceManager
    public static XStream xstream = new XStream();
                                        ^
5 errorsAnd this is the folder where my XStream.jar is located. C:\Documents and Settings\Benjamin Dahse\Client\libAnd this is how I'm compiling: "C:/programmer/Java/jdk1.6.0_10/bin/javac.exe" *.java <-- so far XD.
I suppose this was the information you required so now please, please, please, make my compiler ;).

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