Java WS may hang on startup with the following stack trace (WinXP):

"javawsApplicationMain" prio=6 tid=0x0db0a000 nid=0xa78 in Object.wait() [0x0e17f000..0x0e17fa94]
   java.lang.Thread.State: WAITING (on object monitor)
        at java.lang.Object.wait(Native Method)
        - waiting on <0x22edc6e8> (a java.lang.Object)
        at java.lang.Object.wait(Object.java:485)
        at com.sun.javaws.ui.JavawsSysRun.delegate(Unknown Source)
        - locked <0x22edc6e8> (a java.lang.Object)
        - locked <0x22ec4788> (a com.sun.javaws.ui.JavawsSysRun)
        at com.sun.deploy.util.DeploySysRun.execute(Unknown Source)
        at com.sun.deploy.util.DeploySysRun$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at com.sun.deploy.util.DeploySysRun.executePrivileged(Unknown Source)
        at com.sun.deploy.ui.UIFactory.hideProgressDialog(Unknown Source)
        at com.sun.javaws.ui.DownloadWindow.setVisible(Unknown Source)
        at com.sun.javaws.ui.DownloadWindow.disposeWindow(Unknown Source)
        at com.sun.javaws.Launcher.executeApplication(Unknown Source)
        at com.sun.javaws.Launcher.executeMainClass(Unknown Source)
        at com.sun.javaws.Launcher.doLaunchApp(Unknown Source)
        at com.sun.javaws.Launcher.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)