java.sql.SQLException: org.apache.derby.jdbc.EmbeddedDriver is not registered with the JDBC driver manager
   at org.apache.derby.jdbc.AutoloadedDriver.getDriverModule(AutoloadedDriver.java:0)
   at org.apache.derby.jdbc.EmbeddedDriver.getDriverModule(EmbeddedDriver.java:0)
   at org.apache.derby.jdbc.EmbeddedDriver.connect(EmbeddedDriver.java:0)
   at org.netbeans.modules.db.explorer.DbDriverManager.getSameDriverConnection(DbDriverManager.java:173)
   at org.netbeans.modules.db.explorer.DerbyConectionEventListener.afterDisconnect(DerbyConectionEventListener.java:115)
   at org.netbeans.modules.db.explorer.DatabaseConnector.performDisconnect(DatabaseConnector.java:182)
   at org.netbeans.modules.db.explorer.DatabaseConnection.disconnect(DatabaseConnection.java:1260)
   at org.netbeans.modules.db.explorer.DatabaseConnection.isVitalConnection(DatabaseConnection.java:335)
   at org.netbeans.modules.db.explorer.action.ExecuteCommandAction.enable(ExecuteCommandAction.java:66)
   at org.openide.util.actions.NodeAction$DelegateAction.resultChanged(NodeAction.java:615)
   at sun.reflect.GeneratedMethodAccessor57.invoke(GeneratedMethodAccessor57.java:0)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:497)
   at org.openide.util.WeakListenerImpl$ProxyListener.invoke(WeakListenerImpl.java:461)
   at com.sun.proxy.$Proxy6.resultChanged(.java:0)
   at org.openide.util.lookup.ProxyLookup$1Notify.run(ProxyLookup.java:180)
   at org.openide.util.lookup.ProxyLookup.setLookups(ProxyLookup.java:189)
   at org.openide.util.lookup.ProxyLookup.setLookups(ProxyLookup.java:125)
   at org.openide.explorer.DefaultEMLookup.updateLookups(DefaultEMLookup.java:134)
   at org.openide.explorer.DefaultEMLookup.propertyChange(DefaultEMLookup.java:166)
   at org.openide.util.WeakListenerImpl$PropertyChange.propertyChange(WeakListenerImpl.java:197)
   at java.beans.PropertyChangeSupport.fire(PropertyChangeSupport.java:335)
   at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:327)
   at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:263)
   at org.openide.explorer.ExplorerManager$2.run(ExplorerManager.java:886)
   at org.openide.util.Mutex.doEvent(Mutex.java:1356)
   at org.openide.util.Mutex.readAccess(Mutex.java:355)
   at org.openide.explorer.ExplorerManager.fireInAWT(ExplorerManager.java:883)
   at org.openide.explorer.ExplorerManager$1AtomicSetSelectedNodes.fire(ExplorerManager.java:292)
   at org.openide.explorer.ExplorerManager.setSelectedNodes(ExplorerManager.java:303)
   at org.openide.explorer.ExplorerManager$1SetExploredContextAndSelection.run(ExplorerManager.java:391)
   at org.openide.util.Mutex.readAccess(Mutex.java:372)
   at org.openide.util.Mutex$1R.run(Mutex.java:1322)
   at org.openide.util.Mutex.doWrapperAccess(Mutex.java:1339)
   at org.openide.util.Mutex.readAccess(Mutex.java:361)
   at org.openide.explorer.ExplorerManager.setExploredContextAndSelection(ExplorerManager.java:418)
   at org.openide.explorer.view.BeanTreeView.selectionChanged(BeanTreeView.java:149)
   at org.openide.explorer.view.TreeView.callSelectionChanged(TreeView.java:849)
   at org.openide.explorer.view.TreeView$TreePropertyListener.run(TreeView.java:1491)
   at org.openide.util.Mutex$1Exec.run(Mutex.java:1259)
   at org.openide.nodes.Children$ProjectManagerDeadlockDetector.execute(Children.java:1921)
   at org.openide.util.Mutex.postRequest(Mutex.java:1265)
   at org.openide.util.Mutex.postRequest(Mutex.java:1228)
   at org.openide.util.Mutex.postReadRequest(Mutex.java:575)
   at org.openide.explorer.view.TreeView$TreePropertyListener.valueChanged(TreeView.java:1460)
   at javax.swing.tree.DefaultTreeSelectionModel.fireValueChanged(DefaultTreeSelectionModel.java:635)
   at javax.swing.tree.DefaultTreeSelectionModel.notifyPathChange(DefaultTreeSelectionModel.java:1093)
   at javax.swing.tree.DefaultTreeSelectionModel.setSelectionPaths(DefaultTreeSelectionModel.java:294)
   at javax.swing.tree.DefaultTreeSelectionModel.setSelectionPath(DefaultTreeSelectionModel.java:188)
   at javax.swing.JTree.setSelectionPath(JTree.java:1634)
   at javax.swing.plaf.basic.BasicTreeUI.selectPathForEvent(BasicTreeUI.java:2393)
   at javax.swing.plaf.basic.BasicTreeUI$Handler.handleSelection(BasicTreeUI.java:3609)
   at javax.swing.plaf.basic.BasicTreeUI$Handler.mousePressedDND(BasicTreeUI.java:3586)
   at javax.swing.plaf.basic.BasicTreeUI$Handler.mousePressed(BasicTreeUI.java:3545)
   at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:279)
   at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:279)
   at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:279)
   at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:279)
   at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:279)
   at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:279)
   at java.awt.Component.processMouseEvent(Component.java:6532)
   at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
   at java.awt.Component.processEvent(Component.java:6300)
   at java.awt.Container.processEvent(Container.java:2236)
   at java.awt.Component.dispatchEventImpl(Component.java:4891)
   at java.awt.Container.dispatchEventImpl(Container.java:2294)
   at java.awt.Component.dispatchEvent(Component.java:4713)
   at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4888)
   at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:4522)
   at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:4466)
   at java.awt.Container.dispatchEventImpl(Container.java:2280)
   at java.awt.Window.dispatchEventImpl(Window.java:2750)
   at java.awt.Component.dispatchEvent(Component.java:4713)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
   at java.awt.EventQueue.access$500(EventQueue.java:97)
   at java.awt.EventQueue$3.run(EventQueue.java:709)
   at java.awt.EventQueue$3.run(EventQueue.java:703)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
   at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
   at java.awt.EventQueue$4.run(EventQueue.java:731)
   at java.awt.EventQueue$4.run(EventQueue.java:729)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)