posted 23 years ago
hi
i am displaying live data on jtable.i am opening many frames(clone) one by one.if it more than 5 frame it's not repainting properly.mine is 128 memory.i am using updateUI() method everywhere.it's like hanging.taking much time to display.all
the frames are displaying data.
and its throwing following exception.
can any one help me in this regards.
bye
Exception occurred during event dispatching:
java.lang.NullPointerException
at javax.swing.plaf.basic.BasicTableUI.paintCell(BasicTableUI.java, Comp
iled Code)
at javax.swing.plaf.basic.BasicTableUI.paintRow(BasicTableUI.java, Compi
led Code)
at javax.swing.plaf.basic.BasicTableUI.paint(BasicTableUI.java, Compiled
Code)
at javax.swing.plaf.ComponentUI.update(ComponentUI.java, Compiled Code)
at javax.swing.JComponent.paintComponent(JComponent.java, Compiled Code)
at javax.swing.JComponent.paint(JComponent.java, Compiled Code)
at javax.swing.JComponent.paintChildren(JComponent.java, Compiled Code)
at javax.swing.JComponent.paint(JComponent.java, Compiled Code)
at javax.swing.JViewport.paintViaBackingStore(JViewport.java, Compiled C
ode)
at javax.swing.JViewport.paint(JViewport.java, Compiled Code)
at javax.swing.JComponent.paintWithBuffer(JComponent.java, Compiled Code
)
at javax.swing.JComponent._paintImmediately(JComponent.java, Compiled Co
de)TableChanged 1
at javax.swing.JComponent.paintImmediately(JComponent.java, Compiled Cod
e)
at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java, Com
piled Code)
at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(System
EventQueueUtilities.java, Compiled Code)
at javax.swing.SystemEventQueueUtilities.processRunnableEvent(SystemEven
tQueueUtilities.java, Compiled Code)
at javax.swing.SystemEventQueueUtilities$RunnableTarget.processEvent(Sys
temEventQueueUtilities.java, Compiled Code)
at java.awt.Component.dispatchEventImpl(Component.java, Compiled Code)
at java.awt.Component.dispatchEvent(Component.java, Compiled Code)
at java.awt.EventQueue.dispatchEvent(EventQueue.java, Compiled Code)
at java.awt.EventDispatchThread.pumpOneEvent(EventDispatchThread.java, C
ompiled Code)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:92)
at java.awt.Ev