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Crashes when using NSTreeController

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Crashes when using NSTreeController

Subject: Crashes when using NSTreeController
From: Frank Illenberger <email@hidden>
Date: Wed, 22 Jun 2005 18:50:24 +0200

Hi,

has anybody encountered the following crashes when using and NSOutlineView bound to an NSTreeController. The NSTreeController gets its data from a CoreData based managed object hierarchy. Everything works fine until I start using the undo mechanism of CoreData. Then I randomly encounter the following crash:

Exception:  EXC_BAD_ACCESS (0x0001)
Codes:      KERN_PROTECTION_FAILURE (0x0002) at 0x00000000

1 com.apple.AppKit 0x93adffcc -[_NSBindingAdaptor outlineColumn:willDisplayCell:row:] + 112 2 com.apple.AppKit 0x93782f68 -[NSOutlineView _sendDelegateWillDisplayCell:forColumn:row:] + 108 3 com.apple.AppKit 0x936dd2a0 -[NSTableView _drawContentsAtRow:column:clipRect:] + 396 4 com.apple.AppKit 0x937828c8 -[NSOutlineView _drawContentsAtRow:column:clipRect:] + 244 5 com.apple.AppKit 0x936dcc94 -[NSTableView drawRow:clipRect:] + 220 6 com.apple.AppKit 0x937827c0 -[NSOutlineView drawRow:clipRect:] + 184 7 com.apple.AppKit 0x936dca50 -[NSTableView drawRowIndexes:clipRect:] + 108 8 com.apple.AppKit 0x936dc0d8 -[NSTableView drawRect:] + 1144 9 com.apple.AppKit 0x93670d10 -[NSView _drawRect:clip:] + 2128 10 com.apple.AppKit 0x936702e0 -[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:] + 404 11 com.apple.AppKit 0x9366f8b8 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisible RectForView:topView:] + 196 12 com.apple.AppKit 0x9366fe80 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisible RectForView:topView:] + 1676 13 com.apple.AppKit 0x9366fe80 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisible RectForView:topView:] + 1676 14 com.apple.AppKit 0x9366fe80 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisible RectForView:topView:] + 1676 15 com.apple.AppKit 0x9366fe80 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisible RectForView:topView:] + 1676 16 com.apple.AppKit 0x9366fe80 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisible RectForView:topView:] + 1676 17 com.apple.AppKit 0x9366fe80 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisible RectForView:topView:] + 1676 18 com.apple.AppKit 0x9366fe80 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisible RectForView:topView:] + 1676 19 com.apple.AppKit 0x9366fe80 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisible RectForView:topView:] + 1676 20 com.apple.AppKit 0x9366fe80 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisible RectForView:topView:] + 1676 21 com.apple.AppKit 0x9366fe80 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisible RectForView:topView:] + 1676 22 com.apple.AppKit 0x936904dc -[NSThemeFrame _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisible RectForView:topView:] + 192 23 com.apple.AppKit 0x9366952c -[NSView _displayRectIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:] + 384 24 com.apple.AppKit 0x9365e830 -[NSView displayIfNeeded] + 248 25 com.apple.AppKit 0x9365e6a0 -[NSWindow displayIfNeeded] + 180

When using NSZombie mechanism, it tells me that it has something to do with _NSKeyForwardingGetBinding and NSArrayControllerTreeNode.

I am quite desperate about these crashes and hoping somebody already has found a solution for this.

Cheers

 Frank


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