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treeviewer getchildren error sometimes [message #554591]

Mon, 23 August 2010 16:09

Bright

Messages: 2
Registered: July 2009

Junior Member

I have set up an application with treeviewer instead of tabletreeviewer, when i sort my column, sometimes it throws an exception "widget is disposed"

I traced the track of AbstractTreeViewer, i found somethings wired when getChildren from the treeviewer.

the items returned is more than the tree's actual item. it cause the code line 2600
int numItemsToDispose = items.length - min (> 0)
the variable min is the actual item in the tree.

i think the code block between code line 2608 and 2624 make the exception happened. It just dispose the item, not remove it from the items, so if return value of method getchildren is larger than elementChildren.length in method updateChildren(Widget widget, Object parent, Object[] elementChildren, boolean updateLabels), the exception might happen.

sorry for my bad english!

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Re: treeviewer getchildren error sometimes [message #554596 is a reply to message #554591]

Mon, 23 August 2010 16:15

Bright

Messages: 2
Registered: July 2009

Junior Member

my eclipse version is 3.4.1.

at the code line 2579:
Item[] items = getChildren(widget,elementChildren);

the items are more than elementChildren's size.(10% chance), the items' length is correct in 90%.

In my dubug view, the elementChildren's size is my treeviewer's input.

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