[..]

public class WToolkit extends SunToolkit implements Runnable {

[..]

 public WToolkit() {
        // Startup toolkit threads
        if (PerformanceLogger.loggingEnabled()) {
            PerformanceLogger.setTime("WToolkit construction");
        }

        sun.java2d.Disposer.addRecord(anchor, new ToolkitDisposer());

        synchronized (this) {
            // Fix for bug #4046430 -- Race condition
            // where notifyAll can be called before
            // the "AWT-Windows" thread's parent thread is 
            // waiting, resulting in a deadlock on startup.

            /*
             * Fix for 4701990.
             * AWTAutoShutdown state must be changed before the toolkit thread
             * starts to avoid race condition.
             */
            AWTAutoShutdown.notifyToolkitThreadBusy();

            if (!startToolkitThread(this)) {
                Thread toolkitThread = new Thread(this, "AWT-Windows");
                toolkitThread.setDaemon(true);
                toolkitThread.start();
            }

            try {
                wait();
            }
            catch (InterruptedException x) {
            }
        }
        SunToolkit.setDataTransfererClassName(DATA_TRANSFERER_CLASS_NAME);

        // Enabled "live resizing" by default.  It remains controlled
        // by the native system though.
        setDynamicLayout(true);
    }

    public void run() {
        Thread.currentThread().setPriority(Thread.NORM_PRIORITY+1);
        boolean startPump = init();

       [..]

        synchronized(this) {
            notifyAll();
        }

        if (startPump) {
            eventLoop(); // will Dispose Toolkit when shutdown hook executes
        }
    }
    
    [..]