NPE while editing Tab Titles in JideTabbedPane

[Tauqeer]

Hi,

I am getting the below error when the tab title is edited. It is not everytime but id does appear very often. Any help would be appreciated.

Regards
Tauqeer

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at com.jidesoft.plaf.basic.BasicJideTabbedPaneUI.calculateTabWidth(Unknown Source)
at com.jidesoft.plaf.basic.BasicJideTabbedPaneUI$TabbedPaneScrollLayout.calculateTabRects(Unknown Source)
at com.jidesoft.plaf.basic.BasicJideTabbedPaneUI$TabbedPaneLayout.calculateLayoutInfo(Unknown Source)
at com.jidesoft.plaf.basic.BasicJideTabbedPaneUI.ensureCurrentLayout(Unknown Source)
at com.jidesoft.plaf.basic.BasicJideTabbedPaneUI.getTabBounds(Unknown Source)
at javax.swing.JTabbedPane.getBoundsAt(Unknown Source)
at com.jidesoft.plaf.basic.BasicJideTabbedPaneUI.cancelTabEditing(Unknown Source)
at com.jidesoft.plaf.basic.BasicJideTabbedPaneUI.stopTabEditing(Unknown Source)
at com.jidesoft.swing.JideTabbedPane.stopTabEditing(Unknown Source)
at com.jidesoft.plaf.basic.BasicJideTabbedPaneUI$2.shouldYieldFocus(Unknown Source)
at javax.swing.JComponent$1.acceptRequestFocus(Unknown Source)
at java.awt.Component.isRequestFocusAccepted(Unknown Source)
at java.awt.Component.requestFocusHelper(Unknown Source)
at java.awt.Component.requestFocus(Unknown Source)
at java.awt.Component.postNextFocusHelper(Unknown Source)
at java.awt.Component.nextFocusHelper(Unknown Source)
at java.awt.Container.nextFocusHelper(Unknown Source)
at java.awt.Component.removeNotify(Unknown Source)
at java.awt.Container.removeNotify(Unknown Source)
at javax.swing.JComponent.removeNotify(Unknown Source)
at javax.swing.text.JTextComponent.removeNotify(Unknown Source)
at java.awt.Container.removeNotify(Unknown Source)
at javax.swing.JComponent.removeNotify(Unknown Source)
at java.awt.Container.removeNotify(Unknown Source)
at javax.swing.JComponent.removeNotify(Unknown Source)
at java.awt.Container.remove(Unknown Source)
at javax.swing.JTabbedPane.remove(Unknown Source)
at com.jidesoft.plaf.basic.BasicJideTabbedPaneUI.uninstallComponents(Unknown Source)
at com.jidesoft.plaf.basic.BasicJideTabbedPaneUI.uninstallUI(Unknown Source)
at javax.swing.JComponent.setUI(Unknown Source)
at javax.swing.JTabbedPane.setUI(Unknown Source)
at com.jidesoft.swing.JideTabbedPane.setUI(Unknown Source)
at com.jidesoft.swing.JideTabbedPane.updateUI(Unknown Source)
at com.jidesoft.plaf.basic.BasicJideTabbedPaneUI$PropertyChangeHandler.propertyChange(Unknown Source)
at java.beans.PropertyChangeSupport.firePropertyChange(Unknown Source)
at java.beans.PropertyChangeSupport.firePropertyChange(Unknown Source)
at java.beans.PropertyChangeSupport.firePropertyChange(Unknown Source)
at java.awt.Component.firePropertyChange(Unknown Source)
at javax.swing.JComponent.firePropertyChange(Unknown Source)
at com.jidesoft.swing.JideTabbedPane.setTabClosableAt(Unknown Source)
at com.nomura.mob.client.asia.MOBJideTabbedPane.addTabDynamically(MOBJideTabbedPane.java:144)
at com.nomura.mob.client.asia.MOASClient$TabMouseListener.mouseClicked(MOASClient.java:1525)
at java.awt.AWTEventMulticaster.mouseClicked(Unknown Source)
at java.awt.AWTEventMulticaster.mouseClicked(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at com.jidesoft.plaf.basic.BasicJideTabbedPaneUI.calculateTabWidth(Unknown Source)
at com.jidesoft.plaf.basic.BasicJideTabbedPaneUI$TabbedPaneScrollLayout.calculateTabRects(Unknown Source)
at com.jidesoft.plaf.basic.BasicJideTabbedPaneUI$TabbedPaneLayout.calculateLayoutInfo(Unknown Source)
at com.jidesoft.plaf.basic.BasicJideTabbedPaneUI.ensureCurrentLayout(Unknown Source)
at com.jidesoft.plaf.basic.BasicJideTabbedPaneUI.paint(Unknown Source)
at javax.swing.plaf.ComponentUI.update(Unknown Source)
at javax.swing.JComponent.paintComponent(Unknown Source)
at javax.swing.JComponent.paint(Unknown Source)
at javax.swing.JComponent.paintChildren(Unknown Source)
at javax.swing.JComponent.paint(Unknown Source)
at javax.swing.JComponent.paintToOffscreen(Unknown Source)
at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(Unknown Source)
at javax.swing.RepaintManager$PaintManager.paint(Unknown Source)
at javax.swing.BufferStrategyPaintManager.paint(Unknown Source)
at javax.swing.RepaintManager.paint(Unknown Source)
at javax.swing.JComponent._paintImmediately(Unknown Source)
at javax.swing.JComponent.paintImmediately(Unknown Source)
at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)
at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)
at javax.swing.RepaintManager.seqPaintDirtyRegions(Unknown Source)
at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(Unknown Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at com.jidesoft.plaf.basic.BasicJideTabbedPaneUI.calculateTabWidth(Unknown Source)
at com.jidesoft.plaf.basic.BasicJideTabbedPaneUI$TabbedPaneScrollLayout.calculateTabRects(Unknown Source)
at com.jidesoft.plaf.basic.BasicJideTabbedPaneUI$TabbedPaneLayout.calculateLayoutInfo(Unknown Source)
at com.jidesoft.plaf.basic.BasicJideTabbedPaneUI.ensureCurrentLayout(Unknown Source)
at com.jidesoft.plaf.basic.BasicJideTabbedPaneUI.paint(Unknown Source)
at javax.swing.plaf.ComponentUI.update(Unknown Source)
at javax.swing.JComponent.paintComponent(Unknown Source)
at javax.swing.JComponent.paint(Unknown Source)
at javax.swing.JComponent.paintChildren(Unknown Source)
at javax.swing.JComponent.paint(Unknown Source)
at javax.swing.JComponent.paintToOffscreen(Unknown Source)
at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(Unknown Source)
at javax.swing.RepaintManager$PaintManager.paint(Unknown Source)
at javax.swing.BufferStrategyPaintManager.paint(Unknown Source)
at javax.swing.RepaintManager.paint(Unknown Source)
at javax.swing.JComponent._paintImmediately(Unknown Source)
at javax.swing.JComponent.paintImmediately(Unknown Source)
at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)
at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)
at javax.swing.RepaintManager.seqPaintDirtyRegions(Unknown Source)
at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(Unknown Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

[JIDE Support]

Tried JideTabbedPaneDemo for a while to edit the tab but could not reproduce the issue. Most of our customers see the NPE issue when they have multiple threads and have a certain non-EDT thread that tries to update UI. Please check if this is your case. If possible, can yo please use JIDE JideTabbedPaneDemo as a start point to create a test case for us to investigate further?

Thanks,

[Tauqeer]

This is now resolved. Thanks for the help.

[JananiPriya]

Hi Tauqeer.

I'm getting similar error as you have mentioned. May i know, how did you resolved it.

Thanks,
Janani