java.lang.NullPointerException
   at org.netbeans.swing.laf.dark.RelativeColor.createValue(RelativeColor.java:195)
   at javax.swing.UIDefaults.getFromHashtable(UIDefaults.java:217)
   at javax.swing.UIDefaults.get(UIDefaults.java:162)
   at javax.swing.MultiUIDefaults.get(MultiUIDefaults.java:58)
   at javax.swing.UIDefaults.getColor(UIDefaults.java:418)
   at javax.swing.UIManager.getColor(UIManager.java:698)
   at javax.swing.plaf.basic.BasicTableUI.installDefaults(BasicTableUI.java:1417)
   at javax.swing.plaf.basic.BasicTableUI.installUI(BasicTableUI.java:1388)
   at javax.swing.JComponent.setUI(JComponent.java:664)
   at javax.swing.JTable.setUI(JTable.java:3602)
   at javax.swing.JTable.updateUI(JTable.java:3644)
   at org.netbeans.swing.popupswitcher.SwitcherTable.updateUI(SwitcherTable.java:160)
   at javax.swing.JTable.<init>(JTable.java:636)
   at javax.swing.JTable.<init>(JTable.java:561)
   at org.netbeans.swing.popupswitcher.SwitcherTable.<init>(SwitcherTable.java:113)
   at org.netbeans.swing.tabcontrol.DocumentSwitcherTable.<init>(DocumentSwitcherTable.java:67)
   at org.netbeans.swing.tabcontrol.ButtonPopupSwitcher.<init>(ButtonPopupSwitcher.java:132)
   at org.netbeans.swing.tabcontrol.ButtonPopupSwitcher.showPopup(ButtonPopupSwitcher.java:120)
   at org.netbeans.swing.tabcontrol.TabListPopupAction.actionPerformed(TabListPopupAction.java:75)
   at org.netbeans.swing.tabcontrol.plaf.TabControlButtonFactory$DropDownButton.processMouseEvent(TabControlButtonFactory.java:494)
   at java.awt.Component.processEvent(Component.java:6270)
   at java.awt.Container.processEvent(Container.java:2229)
   at java.awt.Component.dispatchEventImpl(Component.java:4861)
   at java.awt.Container.dispatchEventImpl(Container.java:2287)
   at java.awt.Component.dispatchEvent(Component.java:4687)
   at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4832)
   at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:4489)
   at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:4422)
   at java.awt.Container.dispatchEventImpl(Container.java:2273)
   at java.awt.Window.dispatchEventImpl(Window.java:2719)
   at java.awt.Component.dispatchEvent(Component.java:4687)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:729)
   at java.awt.EventQueue.access$200(EventQueue.java:103)
   at java.awt.EventQueue$3.run(EventQueue.java:688)
   at java.awt.EventQueue$3.run(EventQueue.java:686)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
   at java.awt.EventQueue$4.run(EventQueue.java:702)
   at java.awt.EventQueue$4.run(EventQueue.java:700)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:699)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)