java.lang.ClassCastException: java.util.HashSet
	at org.netbeans.modules.versioning.system.cvss.util.Utils.addFileObjects(Utils.java:153)
	at org.netbeans.modules.versioning.system.cvss.util.Utils.getActivatedFiles(Utils.java:91)
	at org.netbeans.modules.versioning.system.cvss.util.Utils.getActivatedFiles(Utils.java:55)
	at org.netbeans.modules.versioning.system.cvss.Annotator.getActions(Annotator.java:251)
	at org.netbeans.modules.versioning.system.cvss.ui.actions.CvsCommandsMenuItem.getPopupPresenter(CvsCommandsMenuItem.java:53)
	at org.openide.actions.FileSystemAction.createMenu(FileSystemAction.java:171)
	at org.openide.actions.FileSystemAction.createMenu(FileSystemAction.java:132)
	at org.openide.actions.FileSystemAction$Menu.<init>(FileSystemAction.java:239)
	at org.openide.actions.FileSystemAction$DelegateAction.getPopupPresenter(FileSystemAction.java:403)
	at org.openide.util.Utilities.actionsToPopup(Utilities.java:2584)
	at org.openide.util.Utilities.actionsToPopup(Utilities.java:2657)
	at org.openide.explorer.view.TreeView.createPopup(TreeView.java:864)
	at org.openide.explorer.view.TreeView$PopupAdapter.showPopup(TreeView.java:1272)
	at org.openide.awt.MouseUtils$PopupMouseAdapter.maybePopup(MouseUtils.java:152)
	at org.openide.awt.MouseUtils$PopupMouseAdapter.mouseReleased(MouseUtils.java:147)
	at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:232)
	at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:231)
	at java.awt.Component.processMouseEvent(Component.java:5488)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3126)
	at java.awt.Component.processEvent(Component.java:5253)
	at java.awt.Container.processEvent(Container.java:1966)
	at java.awt.Component.dispatchEventImpl(Component.java:3955)
	at java.awt.Container.dispatchEventImpl(Container.java:2024)
	at java.awt.Component.dispatchEvent(Component.java:3803)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3892)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822)
	at java.awt.Container.dispatchEventImpl(Container.java:2010)
	at java.awt.Window.dispatchEventImpl(Window.java:1774)
	at java.awt.Component.dispatchEvent(Component.java:3803)
[catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
	at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)