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java.lang.NullPointerException: 	at org.netbeans.modules.server.ui.wizard.ServerWizardVisual.isServerValid(ServerWizardVisual.java:155)	at org.netbeans.modules.server.ui.wizard.ServerWizardVisual.isValid(ServerWizardVisual.java:146)	at java.awt.Component.invalidateIfValid(Component.java:2740)	at java.awt.Component.setLocale(Component.java:1810)	at javax.swing.JComponent.(JComponent.java:595)	at javax.swing.JPanel.(JPanel.java:65)	at javax.swing.JPanel.(JPanel.java:92)	at javax.swing.JPanel.(JPanel.java:100)	at org.netbeans.modules.server.ui.wizard.ServerWizardVisual.(ServerWizardVisual.java:83)	at org.netbeans.modules.server.ui.wizard.ServerWizardPanel.getComponent(ServerWizardPanel.java:68)	at org.netbeans.modules.server.ui.wizard.AddServerInstanceWizard$AddServerInstanceWizardIterator.initialize(AddServerInstanceWizard.java:295)	at org.openide.WizardDescriptor.callInitialize(WizardDescriptor.java:1417)	at org.openide.WizardDescriptor.(WizardDescriptor.java:472)	at org.openide.WizardDescriptor.(WizardDescriptor.java:481)	at org.netbeans.modules.server.ui.wizard.AddServerInstanceWizard.(AddServerInstanceWizard.java:107)	at org.netbeans.modules.server.ui.wizard.AddServerInstanceWizard.(AddServerInstanceWizard.java:94)	at org.netbeans.modules.server.ui.wizard.AddServerInstanceWizard.showAddServerInstanceWizard(AddServerInstanceWizard.java:134)	at org.netbeans.modules.server.ui.node.AddServerInstanceAction.performAction(AddServerInstanceAction.java:58)	at org.openide.util.actions.NodeAction$DelegateAction$1.run(NodeAction.java:581)	at org.netbeans.modules.openide.util.ActionsBridge.doPerformAction(ActionsBridge.java:77)	at org.openide.util.actions.NodeAction$DelegateAction.actionPerformed(NodeAction.java:577)	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)	at javax.swing.AbstractButton.doClick(AbstractButton.java:357)	at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1225)	at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1266)	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4556)