HTTP ERROR 500 java.util.ConcurrentModificationException
URI:	/nxmc/nxmc-light.app
STATUS:	500
MESSAGE:	java.util.ConcurrentModificationException
SERVLET:	rwtServlet
CAUSED BY:	java.util.ConcurrentModificationException
Caused by:
java.util.ConcurrentModificationException
	at java.base/java.util.HashMap$HashIterator.nextNode(HashMap.java:1579)
	at java.base/java.util.HashMap$KeyIterator.next(HashMap.java:1602)
	at org.netxms.nxmc.base.views.View.activate(View.java:351)
	at org.netxms.nxmc.base.views.ViewStack.activateView(ViewStack.java:473)
	at org.netxms.nxmc.base.views.ViewStack.pushViewInternal(ViewStack.java:373)
	at org.netxms.nxmc.base.views.ViewStack.setView(ViewStack.java:323)
	at org.netxms.nxmc.base.windows.PopOutViewWindow.createContents(PopOutViewWindow.java:202)
	at org.eclipse.jface.window.Window.create(Window.java:451)
	at org.eclipse.jface.window.Window.open(Window.java:834)
	at org.netxms.nxmc.Startup.createUI(Startup.java:298)
	at org.eclipse.rap.rwt.internal.lifecycle.RWTLifeCycle.createUI(RWTLifeCycle.java:177)
	at org.eclipse.rap.rwt.internal.lifecycle.RWTLifeCycle$UIThreadController.run(RWTLifeCycle.java:290)
	at java.base/java.lang.Thread.run(Thread.java:833)
	at org.eclipse.rap.rwt.internal.lifecycle.UIThread.run(UIThread.java:107)
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