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java.lang.NullPointerException at javax.swing.ImageIcon.<init>(ImageIcon.java:161) at javax.swing.ImageIcon.<init>(ImageIcon.java:147) at sun.swing.WindowsPlacesBar.<init>(WindowsPlacesBar.java:82) at com.sun.java.swing.plaf.windows.WindowsFileChooserUI.updateUseShellFolder (WindowsFileChooserUI.java:508) at com.sun.java.swing.plaf.windows.WindowsFileChooserUI.installComponents (WindowsFileChooserUI.java:203) at javax.swing.plaf.basic.BasicFileChooserUI.installUI (BasicFileChooserUI.java:136) at com.sun.java.swing.plaf.windows.WindowsFileChooserUI.installUI (WindowsFileChooserUI.java:140) at javax.swing.JComponent.setUI(JComponent.java:652) at javax.swing.JFileChooser.updateUI(JFileChooser.java:1755) at javax.swing.JFileChooser.setup(JFileChooser.java:366) at javax.swing.JFileChooser.<init>(JFileChooser.java:332) at javax.swing.JFileChooser.<init>(JFileChooser.java:285) at org.netbeans.modules.j2ee.weblogic9.ui.wizard.ServerLocationPanel.<init> (ServerLocationPanel.java:221) at org.netbeans.modules.j2ee.weblogic9.ui.wizard.WLInstantiatingIterator.<init> (WLInstantiatingIterator.java:279) at org.netbeans.modules.j2ee.weblogic9.optional.WLOptionalDeploymentManagerFactory .getAddInstanceIterator(WLOptionalDeploymentManagerFactory.java:78) at org.netbeans.modules.j2ee.deployment.impl.ui.wizard.ServerChooserVisual$ServerM odel.<init>(ServerChooserVisual.java:285) at org.netbeans.modules.j2ee.deployment.impl.ui.wizard.ServerChooserVisual.initCom ponents(ServerChooserVisual.java:202) at org.netbeans.modules.j2ee.deployment.impl.ui.wizard.ServerChooserVisual.<init> (ServerChooserVisual.java:44) at org.netbeans.modules.j2ee.deployment.impl.ui.wizard.ServerChooserPanel.getCompo nent(ServerChooserPanel.java:38) at org.netbeans.modules.j2ee.deployment.impl.ui.wizard.AddServerInstanceWizard$Add ServerInstanceWizardIterator.initialize(AddServerInstanceWizard.java:190) at org.openide.WizardDescriptor.callInitialize (WizardDescriptor.java:1171) at org.openide.WizardDescriptor.<init>(WizardDescriptor.java:355) at org.openide.WizardDescriptor.<init>(WizardDescriptor.java:365) at org.netbeans.modules.j2ee.deployment.impl.ui.wizard.AddServerInstanceWizard.<in it>(AddServerInstanceWizard.java:57) at org.netbeans.modules.j2ee.deployment.impl.ui.wizard.AddServerInstanceWizard.<in it>(AddServerInstanceWizard.java:44) at org.netbeans.modules.j2ee.deployment.impl.ui.ServersCustomizer.addServer (ServersCustomizer.java:278) at org.netbeans.modules.j2ee.deployment.impl.ui.ServersCustomizer.access$000 (ServersCustomizer.java:60) at org.netbeans.modules.j2ee.deployment.impl.ui.ServersCustomizer$1.actionPerforme d(ServersCustomizer.java:159) at javax.swing.AbstractButton.fireActionPerformed (AbstractButton.java:1849) at javax.swing.AbstractButton$Handler.actionPerformed (AbstractButton.java:2169) at javax.swing.DefaultButtonModel.fireActionPerformed (DefaultButtonModel.java:420) at javax.swing.DefaultButtonModel.setPressed (DefaultButtonModel.java:258) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased (BasicButtonListener.java:234) at java.awt.Component.processMouseEvent(Component.java:5488) at javax.swing.JComponent.processMouseEvent(JComponent.java:3126) 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:1774) at java.awt.Component.dispatchEvent(Component.java:3803) at java.awt.EventQueue.dispatchEvent(EventQueue.java:463) at java.awt.EventDispatchThread.pumpOneEventForHierarchy (EventDispatchThread.java:242) at java.awt.EventDispatchThread.pumpEventsForHierarchy (EventDispatchThread.java:163) at java.awt.EventDispatchThread.pumpEventsForHierarchy (EventDispatchThread.java:153) at java.awt.Dialog$1.run(Dialog.java:517) at java.awt.Dialog$2.run(Dialog.java:545) at java.security.AccessController.doPrivileged(Native Method) at java.awt.Dialog.show(Dialog.java:543) at org.netbeans.core.windows.services.NbPresenter.superShow (NbPresenter.java:810) at org.netbeans.core.windows.services.NbPresenter.doShow (NbPresenter.java:853) at org.netbeans.core.windows.services.NbPresenter.run (NbPresenter.java:841) at org.openide.util.Mutex.doEventAccess(Mutex.java:1172) at org.openide.util.Mutex.readAccess(Mutex.java:209) at org.netbeans.core.windows.services.NbPresenter.show (NbPresenter.java:826) at java.awt.Component.show(Component.java:1300) at java.awt.Component.setVisible(Component.java:1253) at org.netbeans.modules.j2ee.deployment.devmodules.api.ServerManager.showCustomize r(ServerManager.java:62) at org.netbeans.modules.j2ee.deployment.impl.ui.actions.ServerManagerAction.perfor mAction(ServerManagerAction.java:33) at org.openide.util.actions.CallableSystemAction$1.run (CallableSystemAction.java:94) at org.netbeans.modules.openide.util.ActionsBridge.doPerformAction (ActionsBridge.java:47) at org.openide.util.actions.CallableSystemAction.actionPerformed (CallableSystemAction.java:90) at javax.swing.AbstractButton.fireActionPerformed (AbstractButton.java:1849) at javax.swing.AbstractButton$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:3126) 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:1774) at java.awt.Component.dispatchEvent(Component.java:3803) [catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:463) at java.awt.EventDispatchThread.pumpOneEventForHierarchy (EventDispatchThread.java:242) 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)
Cannot reproduce. Need some steps that lead to this exception. Is it random or reproducible? Please reopen if you have more info.