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[news.eclipse.platform] Re: tableviewer error on events ... eclipse 3.3.2
I believe there is still some problem with the list of item I'm passing to the table viewer ...
the same list that was giving me problem before (that works removing the virtual attribute) now is giving me problem when a new input is set in the viewer ...

just to be clear ...
the table viewer has got the list of item that was generating the error before:
now when I select a new input I get this error (and again ... I can see that he is trying to disassociate a null element)

where should I look ... for sure the items in the list ARE NOT NULL ...
can it be some problem due to object hash????

thanks

org.eclipse.core.runtime.AssertionFailedException: null argument:
at org.eclipse.core.runtime.Assert.isNotNull(Assert.java:84)
at org.eclipse.core.runtime.Assert.isNotNull(Assert.java:72)
at org.eclipse.jface.viewers.StructuredViewer.disassociate(StructuredViewer.java:618)
at org.eclipse.jface.viewers.AbstractTableViewer.internalRefreshAll(AbstractTableViewer.java:711)
at org.eclipse.jface.viewers.AbstractTableViewer.internalRefresh(AbstractTableViewer.java:633)
at org.eclipse.jface.viewers.AbstractTableViewer.internalRefresh(AbstractTableViewer.java:620)
at org.eclipse.jface.viewers.AbstractTableViewer$2.run(AbstractTableViewer.java:576)
at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1368)
at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1330)
at org.eclipse.jface.viewers.AbstractTableViewer.inputChanged(AbstractTableViewer.java:574)
at org.eclipse.jface.viewers.ContentViewer.setInput(ContentViewer.java:251)
at org.eclipse.jface.viewers.StructuredViewer.setInput(StructuredViewer.java:1606)

"Tom Schindl" <tom.schindl@xxxxxxxxxxxxxxx> wrote in message news:gemlgk$rs5$1@xxxxxxxxxxxxxxxxxxxx 
Maybe because there is/was a bug in 3.3.2? We fixed some
Virtual-Problems in 3.4.

Tom

Kar schrieb: 
Hi Tom
error removed ... but still don't understand why

I was using the type SWT.VIRTUAL creating the table ...

TableViewer viewer = new TableViewer(parent, SWT.H_SCROLL | SWT.V_SCROLL
| SWT.BORDER
                | SWT.FULL_SELECTION | SWT.MULTI);

Removing virtual I don't see the error anymore ...
why?

"Tom Schindl" <tom.schindl@xxxxxxxxxxxxxxx> wrote in message
news:gemjn0$f4l$1@xxxxxxxxxxxxxxxxxxxx

What's the content around line CustomHashtable 264? Looks like you are
inserting an NULL value and TableViewer can't deal with null-references.

Tom

Kar schrieb: 
Hi all

I'm having a weird problem with my table viewer .
Based on a selection event (the selection comes from a different view) .
the table view is populated with a list of objects. .

Usually it works but there is an object that generates this error ...
what am I doing wrong?

java.lang.NullPointerException
    at
org.eclipse.jface.viewers.CustomHashtable.hashCode(CustomHashtable.java:264)


    at
org.eclipse.jface.viewers.CustomHashtable.get(CustomHashtable.java:236)
    at
org.eclipse.jface.viewers.StructuredViewer.mapElement(StructuredViewer.java:1243)


    at
org.eclipse.jface.viewers.StructuredViewer.associate(StructuredViewer.java:605)


    at
org.eclipse.jface.viewers.AbstractTableViewer$1.handleEvent(AbstractTableViewer.java:83)


at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:938)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:962)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:947)
at org.eclipse.swt.widgets.Table.checkData(Table.java:811)
at org.eclipse.swt.widgets.Table.wmNotifyChild(Table.java:5882)
at org.eclipse.swt.widgets.Control.wmNotify(Control.java:4563)
at org.eclipse.swt.widgets.Composite.wmNotify(Composite.java:1581)
at org.eclipse.swt.widgets.Control.WM_NOTIFY(Control.java:4216)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:3724)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4364)
at org.eclipse.swt.internal.win32.OS.CallWindowProcW(Native Method)
at org.eclipse.swt.internal.win32.OS.CallWindowProc(OS.java:2179)
at org.eclipse.swt.widgets.Table.callWindowProc(Table.java:261)
at org.eclipse.swt.widgets.Table.callWindowProc(Table.java:189)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:3760)
at org.eclipse.swt.widgets.Table.windowProc(Table.java:5025)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4364)
at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2265)
at
org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3291)
at
org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2389)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2353)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2219)
at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:466)
at
org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:289)


    at
org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:461)

    at
org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
    at
com.xxx.workbench.application.Application.start(Application.java:75)
    at
org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:169)


    at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106)


    at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76)


    at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:363)


    at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:176)


    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:508)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:447)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1173)
    at org.eclipse.equinox.launcher.Main.main(Main.java:1148)




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B e s t S o l u t i o n . at
--------------------------------------------------------------------
Tom Schindl                                          JFace-Committer
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B e s t S o l u t i o n . at
--------------------------------------------------------------------
Tom Schindl JFace-Committer
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