java.lang.AssertionError: null is instanceof License.
        at org.netbeans.modules.autoupdate.updateprovider.AutoupdateInfoParser.getLicenses(AutoupdateInfoParser.java:80)
        at org.netbeans.modules.autoupdate.updateprovider.AutoupdateInfoParser.getUpdateItems(AutoupdateInfoParser.java:65)
        at org.netbeans.modules.autoupdate.updateprovider.LocalNBMsProvider.getUpdateItems(LocalNBMsProvider.java:53)
        at org.netbeans.modules.autoupdate.services.UpdateUnitFactory.getUpdateUnits(UpdateUnitFactory.java:76)
        at org.netbeans.modules.autoupdate.services.UpdateManagerImpl.getUpdateUnits(UpdateManagerImpl.java:70)
        at org.netbeans.modules.autoupdate.services.UpdateUnitProviderImpl.getUpdateUnits(UpdateUnitProviderImpl.java:92)
        at org.netbeans.api.autoupdate.UpdateUnitProvider.getUpdateUnits(UpdateUnitProvider.java:91)
        at org.netbeans.modules.autoupdate.ui.LocalDownloadSupport.getUpdateUnits(LocalDownloadSupport.java:84)
        at org.netbeans.modules.autoupdate.ui.UnitTab.bAddLocallyDownloadsActionPerformed(UnitTab.java:377)
        at org.netbeans.modules.autoupdate.ui.UnitTab.access$700(UnitTab.java:50)
        at org.netbeans.modules.autoupdate.ui.UnitTab$7.actionPerformed(UnitTab.java:320)
        at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1849)
        at javax.swing.AbstractButton$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:236)
        at java.awt.Component.processMouseEvent(Component.java:5501)
        at javax.swing.JComponent.processMouseEvent(JComponent.java:3135)
        at java.awt.Component.processEvent(Component.java:5266)
        at java.awt.Container.processEvent(Container.java:1966)
        at java.awt.Component.dispatchEventImpl(Component.java:3968)
        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:1778)
        at java.awt.Component.dispatchEvent(Component.java:3803)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
[catch] 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:525)
        at java.awt.Dialog$2.run(Dialog.java:553)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.awt.Dialog.show(Dialog.java:551)
        at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:810)
        at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:844)
        at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:832)
        at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:81)
        at org.openide.util.Mutex.doEventAccess(Mutex.java:1201)
        at org.openide.util.Mutex.readAccess(Mutex.java:220)
        at org.netbeans.core.windows.services.NbPresenter.show(NbPresenter.java:817)
        at java.awt.Component.show(Component.java:1300)
        at java.awt.Component.setVisible(Component.java:1253)
        at org.netbeans.modules.autoupdate.ui.actions.PluginManagerAction.performAction(PluginManagerAction.java:49)
        at org.openide.util.actions.CallableSystemAction$1.run(CallableSystemAction.java:96)
        at org.netbeans.modules.openide.util.ActionsBridge.doPerformAction(ActionsBridge.java:55)
        at org.openide.util.actions.CallableSystemAction.actionPerformed(CallableSystemAction.java:92)
        at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1849)
        at javax.swing.AbstractButton$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:5501)
        at javax.swing.JComponent.processMouseEvent(JComponent.java:3135)
        at java.awt.Component.processEvent(Component.java:5266)
        at java.awt.Container.processEvent(Container.java:1966)
        at java.awt.Component.dispatchEventImpl(Component.java:3968)
        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:1778)
        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.pumpEvents(EventDispatchThread.java:157)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)