java.lang.NullPointerException

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    • java.lang.NullPointerException at net.sf.robocode.repository.root.ClassPathRoot.visitDirectory(ClassPathRoot.java:82) at net.sf.robocode.repository.root.ClassPathRoot.update(ClassPathRoot.java:51) at net.sf.robocode.repository.root.handlers.ClassPathHandler.visitDirectory(ClassPathHandler.java:36) at net.sf.robocode.repository.root.handlers.RootHandler.visitDirectories(RootHandler.java:35) at net.sf.robocode.repository.Database.update(Database.java:48) at net.sf.robocode.repository.RepositoryManager.refresh(RepositoryManager.java:97) at net.sf.robocode.repository.RepositoryManager.reload(RepositoryManager.java:121) at net.sf.robocode.repository.RepositoryManager$1.settingChanged(RepositoryManager.java:52) at net.sf.robocode.settings.SettingsManager.notifyPropertyChanged(SettingsManager.java:1044) at net.sf.robocode.settings.SettingsManager.access$100(SettingsManager.java:58) at net.sf.robocode.settings.SettingsManager$SortedProperties.setProperty(SettingsManager.java:1083) at net.sf.robocode.settings.SettingsManager.setOptionsDevelopmentPath(SettingsManager.java:852) at net.sf.robocode.ui.dialog.PreferencesDevelopmentOptionsTab.storePreferences(PreferencesDevelopmentOptionsTab.java:179) at net.sf.robocode.ui.dialog.PreferencesDialog.finishButtonActionPerformed(PreferencesDialog.java:153) at net.sf.robocode.ui.dialog.WizardController.finishButtonActionPerformed(WizardController.java:68) at net.sf.robocode.ui.dialog.WizardController.access$1(WizardController.java:67) at net.sf.robocode.ui.dialog.WizardController$EventHandler.actionPerformed(WizardController.java:45) 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.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236) at java.awt.Component.processMouseEvent(Component.java:6263) at javax.swing.JComponent.processMouseEvent(JComponent.java:3267) at java.awt.Component.processEvent(Component.java:6028) at java.awt.Container.processEvent(Container.java:2041) at java.awt.Component.dispatchEventImpl(Component.java:4630) at java.awt.Container.dispatchEventImpl(Container.java:2099) at java.awt.Component.dispatchEvent(Component.java:4460) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4574) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168) at java.awt.Container.dispatchEventImpl(Container.java:2085) at java.awt.Window.dispatchEventImpl(Window.java:2475) at java.awt.Component.dispatchEvent(Component.java:4460) at java.awt.EventQueue.dispatchEvent(EventQueue.java:599) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:178) at java.awt.Dialog$1.run(Dialog.java:1045) at java.awt.Dialog$3.run(Dialog.java:1097) at java.security.AccessController.doPrivileged(Native Method) at java.awt.Dialog.show(Dialog.java:1095) at java.awt.Component.show(Component.java:1563) at java.awt.Component.setVisible(Component.java:1515) at java.awt.Window.setVisible(Window.java:841) at java.awt.Dialog.setVisible(Dialog.java:985) at net.sf.robocode.ui.dialog.WindowUtil.packCenterShow(WindowUtil.java:143) at net.sf.robocode.ui.WindowManager.showOptionsPreferences(WindowManager.java:274) at net.sf.robocode.ui.dialog.MenuBar.optionsPreferencesActionPerformed(MenuBar.java:904) at net.sf.robocode.ui.dialog.MenuBar.access$23(MenuBar.java:903) at net.sf.robocode.ui.dialog.MenuBar$EventHandler.actionPerformed(MenuBar.java:140) 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.Component.processMouseEvent(Component.java:6263) at javax.swing.JComponent.processMouseEvent(JComponent.java:3267) at java.awt.Component.processEvent(Component.java:6028) at java.awt.Container.processEvent(Container.java:2041) at java.awt.Component.dispatchEventImpl(Component.java:4630) at java.awt.Container.dispatchEventImpl(Container.java:2099) at java.awt.Component.dispatchEvent(Component.java:4460) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4574) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168) at java.awt.Container.dispatchEventImpl(Container.java:2085) at java.awt.Component.dispatchEvent(Component.java:4460) at java.awt.EventQueue.dispatchEvent(EventQueue.java:599) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161) at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
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