After upgrading from 8u181 to 8u212 applet failed to launch with the following error:

basic: PluginMain.unregisterApplet: 6 from mananger sun.plugin2.applet.Applet2Manager@1480cf9
ui: plugin2manager.parentwindowDispose java.lang.ThreadDeath
at java.lang.Thread.stop(Unknown Source)
at java.lang.ThreadGroup.stopOrSuspend(Unknown Source)
at java.lang.ThreadGroup.stop(Unknown Source)
at sun.awt.AppContext.dispose(Unknown Source)
at
com.sun.deploy.uitoolkit.impl.awt.AWTAppContext$AppContextDisposer.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
java.io.IOException: Error closing WindowsNamedPipe: server: true; readPipe: jpi2_pid7848_pipe11, readBufferSz: 4096; writePipe: jpi2_pid7848_pipe12,
writeBufferSz: 4096
at sun.plugin2.ipc.windows.WindowsNamedPipe.close(Unknown Source)
at sun.plugin2.message.transport.NamedPipeTransport.shutdown(Unknown Source)
at sun.plugin2.message.transport.NamedPipeTransportFactory.dispose(Unknown Source)