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Jtable updation!!!!

 
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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
 
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if you are using a table model just call fireTableChanged(null); for the tableModel. I do that and it updates for me.
------------------
I hope its helps, feel free to email me noahcarroll@juno.com
 
wip siva
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hi friend thanx a lot.i let u know later.
my problem is not repainting.for example i am minimizing a frame
next time if i open or maximize it's not coming properly taking
much time sometimes it'z not coming.
hope u got my point.
anyway i try with ur suggestion.
i mail u later.
thanx
 
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