I seem to get a NullPointerException in com.borland.jbcl.view.GridView
This has occured after I changed my jdk version from 1.1.8 to v1.4
Stack Trace :
WARNING LoadPanelThread Caught Throwable java.lang.NullPointerException
at com.borland.jbcl.view.GridView.isReadOnly(GridView.java:201)
at za.co.pnp.framework.PnpGrid.isFocusTraversable(PnpGrid.java:240)
at za.co.pnp.framework.PnpGrid.isManagingFocus(PnpGrid.java:248)
at javax.swing.JComponent.<init>(JComponent.java:377)
at javax.swing.JScrollPane.<init>(JScrollPane.java:256)
at javax.swing.JScrollPane.<init>(JScrollPane.java:313)
at com.borland.jbcl.view.GridView.<init>(GridView.java:47)
at com.borland.jbcl.control.GridControl.<init>(GridControl.java:44)
at za.co.pnp.framework.PnpGrid.<init>(PnpGrid.java:37)
at za.co.pnp.creditor.PanelCreateRemittance.<init>(PanelCreateRemittance.java:105)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:274)
at java.lang.Class.newInstance0(Class.java:296)
at java.lang.Class.newInstance(Class.java:249)
at za.co.pnp.framework.PnpFrameBrowser$LoadPanelThread.run(PnpFrameBrowser.java:685)
WARNING DialogMessage Handling exception java.lang.NullPointerException
at com.borland.jbcl.view.GridView.isReadOnly(GridView.java:201)
at za.co.pnp.framework.PnpGrid.isFocusTraversable(PnpGrid.java:240)
at za.co.pnp.framework.PnpGrid.isManagingFocus(PnpGrid.java:248)
at javax.swing.JComponent.<init>(JComponent.java:377)
at javax.swing.JScrollPane.<init>(JScrollPane.java:256)
at javax.swing.JScrollPane.<init>(JScrollPane.java:313)
at com.borland.jbcl.view.GridView.<init>(GridView.java:47)
at com.borland.jbcl.control.GridControl.<init>(GridControl.java:44)
at za.co.pnp.framework.PnpGrid.<init>(PnpGrid.java:37)
at za.co.pnp.creditor.PanelCreateRemittance.<init>(PanelCreateRemittance.java:105)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:274)
at java.lang.Class.newInstance0(Class.java:296)
at java.lang.Class.newInstance(Class.java:249)
at za.co.pnp.framework.PnpFrameBrowser$LoadPanelThread.run(PnpFrameBrowser.java:685)
My we extend the jbcl grid control in PnpGrid.
Any suggestions to this problem welcome
you usually get NullPointerException when you create an instance and use it without creating an object. it wont give u a compile time error as the instance has been registered but when u use the instance it will look for the object and when it can find the object it will throw a run-time error which in this case is the NullPointerException.
asrar
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