java.lang.NumberFormatException: For input string: "${default"
	at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
	at java.lang.Integer.parseInt(Integer.java:447)
	at java.lang.Integer.parseInt(Integer.java:497)
	at org.openide.modules.SpecificationVersion.parse(SpecificationVersion.java:58)
	at org.openide.modules.SpecificationVersion.<init>(SpecificationVersion.java:41)
	at org.netbeans.modules.web.project.ui.customizer.PlatformUiSupport$SourceLevelComboBoxModel.<init>(PlatformUiSupport.java:237)
	at org.netbeans.modules.web.project.ui.customizer.PlatformUiSupport.createSourceLevelComboBoxModel(PlatformUiSupport.java:126)
	at org.netbeans.modules.web.project.ui.customizer.WebProjectProperties.init(WebProjectProperties.java:291)
	at org.netbeans.modules.web.project.ui.customizer.WebProjectProperties.<init>(WebProjectProperties.java:264)
	at org.netbeans.modules.web.project.WebProject.getWebProjectProperties(WebProject.java:399)
	at org.netbeans.modules.web.project.ui.WebPhysicalViewProvider$WebLogicalViewRootNode$BrokenServerAction.checkMissingServer(WebPhysicalViewProvider.java:353)
	at org.netbeans.modules.web.project.ui.WebPhysicalViewProvider$WebLogicalViewRootNode$BrokenServerAction.<init>(WebPhysicalViewProvider.java:322)
	at org.netbeans.modules.web.project.ui.WebPhysicalViewProvider$WebLogicalViewRootNode.<init>(WebPhysicalViewProvider.java:182)
	at org.netbeans.modules.web.project.ui.WebPhysicalViewProvider.createLogicalView(WebPhysicalViewProvider.java:92)
	at org.netbeans.modules.project.ui.ProjectsRootNode$ProjectChildren.createNodes(ProjectsRootNode.java:234)
	at org.openide.nodes.Children$Keys$KE.nodes(Children.java:2050)
	at org.openide.nodes.ChildrenArray.nodesFor(ChildrenArray.java:112)
	at org.openide.nodes.Children$Info.nodes(Children.java:1137)
	at org.openide.nodes.Children.updateAdd(Children.java:945)
	at org.openide.nodes.Children.setEntries(Children.java:732)
	at org.openide.nodes.Children$4.run(Children.java:1941)
	at org.openide.util.Mutex.postRequest(Mutex.java:987)
	at org.openide.util.Mutex.postWriteRequest(Mutex.java:438)
	at org.openide.nodes.Children$Keys.applyKeys(Children.java:1949)
	at org.openide.nodes.Children$Keys.setKeys(Children.java:1908)
	at org.netbeans.modules.project.ui.ProjectsRootNode$ProjectChildren.propertyChange(ProjectsRootNode.java:260)
	at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:333)
	at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:270)
	at org.netbeans.modules.project.ui.OpenProjectList.open(OpenProjectList.java:162)
	at org.netbeans.modules.project.ui.actions.OpenProject.actionPerformed(OpenProject.java:86)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1849)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2169)
	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420)
	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258)
	at javax.swing.AbstractButton.doClick(AbstractButton.java:302)
	at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1000)
	at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1041)
	at java.awt.Component.processMouseEvent(Component.java:5488)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3093)
	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:1766)
	at java.awt.Component.dispatchEvent(Component.java:3803)
[catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
	at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:234)
	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)