java.lang.RuntimeException: PortRange exhausted
        at net.sf.drftpd.util.PortRange.getPort(PortRange.java:96)
        at org.drftpd.PassiveConnection.<init>(PassiveConnection.java:56)
        at org.drftpd.slave.Slave.handleListen(Slave.java:643)
        at org.drftpd.slave.Slave.handleCommand(Slave.java:520)
        at org.drftpd.slave.Slave.access$200(Slave.java:88)
        at org.drftpd.slave.Slave$1AsyncCommandHandler.run(Slave.java:840)
        at java.lang.Thread.run(Thread.java:619)