ThreadDedicatedServer from MC, notice how it doesn't do what you think.

ThreadDedicatedServer.java

package net.minecraft.src;

import net.minecraft.server.DedicatedServer;

public final class ThreadDedicatedServer extends Thread {
    final DedicatedServer field_96244_a;

    public ThreadDedicatedServer(DedicatedServer par1DedicatedServer) {
        this.field_96244_a = par1DedicatedServer;
    }

    public void run() {
        this.field_96244_a.stopServer();
    }
}