[javac] U:\DrFTPD\src\org\drftpd\plugins\SiteBot.java:82: cannot find symbol
    [javac] symbol  : class LRUCache
    [javac] location: package org.drftpd.misc
    [javac] import org.drftpd.misc.LRUCache;
    [javac]                       ^
    [javac] U:\DrFTPD\src\org\drftpd\plugins\SiteBot.java:152: cannot find symbol
    [javac] symbol  : class LRUCache
    [javac] location: class org.drftpd.plugins.SiteBot
    [javac]     private LRUCache<String,User> _raceleader;
    [javac]             ^
    [javac] U:\DrFTPD\src\org\drftpd\plugins\SiteBot.java:1395: cannot find symbol
    [javac] symbol  : class LRUCache
    [javac] location: class org.drftpd.plugins.SiteBot
    [javac]         _raceleader = new LRUCache<String,User>(20);
    [javac]                           ^
    [javac] Note: U:\DrFTPD\src\org\drftpd\plugins\SiteBot.java uses unchecked or unsafe operations.
    [javac] Note: Recompile with -Xlint:unchecked for details.
    [javac] 3 errors
BUILD FAILED
U:\Zeugs\DR\DrFTPD\build.xml:149: Compile failed; see the compiler error output for details.