java.lang.IllegalArgumentException: unknown format type at 
        at java.text.MessageFormat.makeFormat(MessageFormat.java:1433)
        at java.text.MessageFormat.applyPattern(MessageFormat.java:450)
        at java.text.MessageFormat.<init>(MessageFormat.java:350)
        at org.netbeans.modules.project.ui.actions.ActionsUtil.formatName(ActionsUtil.java:202)
        at org.netbeans.modules.project.ui.actions.ProjectAction.<init>(ProjectAction.java:99)
        at org.netbeans.modules.project.ui.actions.ProjectAction.<init>(ProjectAction.java:79)
        at org.netbeans.modules.project.ui.actions.CloseProject.<init>(CloseProject.java:65)
        at org.netbeans.modules.project.ui.actions.CloseProject.<init>(CloseProject.java:61)
        at org.netbeans.modules.project.ui.actions.Actions.closeProjectAction(Actions.java:99)
        at org.netbeans.spi.project.ui.support.CommonProjectActions.closeProjectAction(CommonProjectActions.java:113)
        at org.netbeans.modules.java.j2seproject.ui.J2SELogicalViewProvider$J2SELogicalViewRootNode.getAdditionalActions(J2SELogicalViewProvider.java:359)
        at org.netbeans.modules.java.j2seproject.ui.J2SELogicalViewProvider$J2SELogicalViewRootNode.getActions(J2SELogicalViewProvider.java:318)
        at org.openide.nodes.FilterNode.getActions(FilterNode.java:746)
        at org.openide.nodes.NodeOp.findActions(NodeOp.java:144)
        at org.openide.explorer.view.TreeView.createPopup(TreeView.java:951)
        at org.openide.explorer.view.TreeView$PopupAdapter.showPopup(TreeView.java:1427)
        at org.openide.awt.MouseUtils$PopupMouseAdapter.maybePopup(MouseUtils.java:182)
        at org.openide.awt.MouseUtils$PopupMouseAdapter.mouseReleased(MouseUtils.java:177)
        at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:232)
        at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:231)
        at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:231)
        at java.awt.Component.processMouseEvent(Component.java:5517)
        at javax.swing.JComponent.processMouseEvent(JComponent.java:3135)
        at java.awt.Component.processEvent(Component.java:5282)
        at java.awt.Container.processEvent(Container.java:1966)
        at java.awt.Component.dispatchEventImpl(Component.java:3984)
        at java.awt.Container.dispatchEventImpl(Container.java:2024)
        at java.awt.Component.dispatchEvent(Component.java:3819)
        at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4212)
        at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:3892)
        at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:3822)
        at java.awt.Container.dispatchEventImpl(Container.java:2010)
        at java.awt.Window.dispatchEventImpl(Window.java:1791)
        at java.awt.Component.dispatchEvent(Component.java:3819)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
        at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104)
        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)