java.awt.HeadlessException: This exception has no message.

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This exception has no message.
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java.awt.HeadlessException:
at java.awt.GraphicsEnvironment.checkHeadless(Unknown Source)
at java.awt.Window.(Unknown Source)
at java.awt.Frame.(Unknown Source)
at com.sun.deploy.ui.DialogTemplate.deriveParent(DialogTemplate.java:1585)
at com.sun.deploy.ui.DialogTemplate.(DialogTemplate.java:105)
at com.sun.deploy.ui.ProgressDialog.(ProgressDialog.java:37)
at com.sun.deploy.ui.UIFactory$10.execute(UIFactory.java:738)
at com.sun.javaws.ui.JavawsSysRun.delegate(JavawsSysRun.java:156)
at com.sun.deploy.util.DeploySysRun.execute(DeploySysRun.java:24)
at com.sun.deploy.ui.UIFactory.createProgressDialog(UIFactory.java:736)
at com.sun.javaws.ui.DownloadWindow.initialize(DownloadWindow.java:125)
at com.sun.javaws.ui.DownloadWindow.initialize(DownloadWindow.java:137)
at com.sun.javaws.ui.DownloadWindowHelper.get(DownloadWindowHelper.java:27)
at com.sun.javaws.Launcher.downloadResources(Launcher.java:1046)
at com.sun.javaws.Launcher.prepareLaunchFile(Launcher.java:629)
at com.sun.javaws.Launcher.prepareToLaunch(Launcher.java:207)
at com.sun.javaws.Launcher.launch(Launcher.java:101)
at com.sun.javaws.Main.launchApp(Main.java:311)
at com.sun.javaws.Main.continueInSecureThread(Main.java:215)
at com.sun.javaws.Main$1.run(Main.java:103)
at java.lang.Thread.run(Unknown Source)

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