java.lang.NoClassDefFoundError: org/netbeans/modules/j2ee/deployment/impl/bridge/BridgingServerInstance
        at org.netbeans.modules.j2ee.deployment.impl.bridge.BridgingServerInstanceProvider.refreshCache(BridgingServerInstanceProvider.java:143)
        at org.netbeans.modules.j2ee.deployment.impl.bridge.BridgingServerInstanceProvider.getInstances(BridgingServerInstanceProvider.java:106)
        at org.netbeans.modules.server.ui.manager.ServerManagerPanel$ServersChildren.createKeys(ServerManagerPanel.java:477)
        at org.openide.nodes.SynchChildren.refresh(SynchChildren.java:82)
        at org.openide.nodes.SynchChildren.addNotify(SynchChildren.java:67)
        at org.openide.nodes.Children.callAddNotify(Children.java:541)
        at org.openide.nodes.Children.getArray(Children.java:583)
        at org.openide.nodes.Children.getNodes(Children.java:422)
        at org.openide.explorer.view.VisualizerNode.getChildren(VisualizerNode.java:244)
        at org.openide.explorer.view.VisualizerNode.getChildCount(VisualizerNode.java:290)
        at javax.swing.tree.DefaultTreeModel.getChildCount(DefaultTreeModel.java:168)
        at javax.swing.tree.VariableHeightLayoutCache$TreeStateNode.expand(VariableHeightLayoutCache.java:1461)
        at javax.swing.tree.VariableHeightLayoutCache$TreeStateNode.expand(VariableHeightLayoutCache.java:1270)
        at javax.swing.tree.VariableHeightLayoutCache.rebuild(VariableHeightLayoutCache.java:725)
        at javax.swing.tree.VariableHeightLayoutCache.treeStructureChanged(VariableHeightLayoutCache.java:626)
        at javax.swing.plaf.basic.BasicTreeUI$Handler.treeStructureChanged(BasicTreeUI.java:3829)
        at javax.swing.tree.DefaultTreeModel.fireTreeStructureChanged(DefaultTreeModel.java:561)
        at javax.swing.tree.DefaultTreeModel.nodeStructureChanged(DefaultTreeModel.java:347)
        at javax.swing.tree.DefaultTreeModel.setRoot(DefaultTreeModel.java:117)
        at org.openide.explorer.view.NodeTreeModel$1.run(NodeTreeModel.java:106)
        at org.openide.util.Mutex.doEvent(Mutex.java:1335)
        at org.openide.util.Mutex.readAccess(Mutex.java:345)
        at org.openide.explorer.view.NodeTreeModel.setNode(NodeTreeModel.java:92)
        at org.openide.explorer.view.TreeView.synchronizeRootContext(TreeView.java:764)
        at org.openide.explorer.view.TreeView.lookupExplorerManager(TreeView.java:606)
        at org.openide.explorer.view.TreeView.addNotify(TreeView.java:586)
        at java.awt.Container.addNotify(Container.java:2592)
        at javax.swing.JComponent.addNotify(JComponent.java:4683)
        at org.netbeans.modules.server.ui.manager.ServerManagerPanel.addNotify(ServerManagerPanel.java:110)
        at java.awt.Container.addNotify(Container.java:2592)
        at javax.swing.JComponent.addNotify(JComponent.java:4683)
        at java.awt.Container.addNotify(Container.java:2592)
        at javax.swing.JComponent.addNotify(JComponent.java:4683)
        at java.awt.Container.addNotify(Container.java:2592)
        at javax.swing.JComponent.addNotify(JComponent.java:4683)
        at javax.swing.JRootPane.addNotify(JRootPane.java:735)
        at java.awt.Container.addNotify(Container.java:2592)
        at java.awt.Window.addNotify(Window.java:638)
        at java.awt.Dialog.addNotify(Dialog.java:747)
        at org.netbeans.core.windows.services.NbPresenter.addNotify(NbPresenter.java:338)
        at java.awt.Window.pack(Window.java:668)
        at org.netbeans.core.windows.services.NbPresenter.initialize(NbPresenter.java:236)
        at org.netbeans.core.windows.services.NbPresenter.<init>(NbPresenter.java:166)
        at org.netbeans.core.windows.services.NbDialog.<init>(NbDialog.java:64)
        at org.netbeans.core.windows.services.DialogDisplayerImpl$1.run(DialogDisplayerImpl.java:130)
        at org.netbeans.core.windows.services.DialogDisplayerImpl$1.run(DialogDisplayerImpl.java:106)
        at org.openide.util.Mutex.doEventAccess(Mutex.java:1355)
        at org.openide.util.Mutex.readAccess(Mutex.java:268)
        at org.netbeans.core.windows.services.DialogDisplayerImpl.createDialog(DialogDisplayerImpl.java:105)
        at org.netbeans.api.server.CommonServerUIs.showCustomizer(CommonServerUIs.java:88)
        at org.netbeans.modules.server.ui.manager.ServerManagerAction.performAction(ServerManagerAction.java:61)
        at org.openide.util.actions.CallableSystemAction$1.run(CallableSystemAction.java:118)
        at org.netbeans.modules.openide.util.ActionsBridge.doPerformAction(ActionsBridge.java:77)
        at org.openide.util.actions.CallableSystemAction.actionPerformed(CallableSystemAction.java:114)
        at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
        at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
        at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
        at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
        at javax.swing.AbstractButton.doClick(AbstractButton.java:357)
        at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1220)
        at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1261)
        at java.awt.Component.processMouseEvent(Component.java:6041)
        at javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
        at java.awt.Component.processEvent(Component.java:5806)
        at java.awt.Container.processEvent(Container.java:2058)
        at java.awt.Component.dispatchEventImpl(Component.java:4413)
        at java.awt.Container.dispatchEventImpl(Container.java:2116)
        at java.awt.Component.dispatchEvent(Component.java:4243)
        at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4322)
        at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:3986)
        at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:3916)
        at java.awt.Container.dispatchEventImpl(Container.java:2102)
        at java.awt.Window.dispatchEventImpl(Window.java:2440)
        at java.awt.Component.dispatchEvent(Component.java:4243)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)