aqbanking5 and ofxdc can crash gnucash trunk

[John Ralls]

On Aug 26, 2010, at 8:08 PM, David Reiser wrote:

> Using gwen r1983, aqbanking r2095, and gnucash r19465, if I
> Use gnucash to get transactions via ofxDC
> Then go to Tools>Online Banking Setup and launch the the Aqbanking wizard,
> gnucash crashes with the console reading:
> 
> * 12:15:31  WARN <gwenhywfar> inherit.c:  180: Type "5f47140b" not derived from this base type
> Assertion failed: (xgui), function AB_Gui_ReadDialogPrefs, file abgui.c, line 246.
> Abort trap
> 
> and the top of the backtrace:
> 
> Exception Type:  EXC_CRASH (SIGABRT)
> Exception Codes: 0x0000000000000000, 0x0000000000000000
> Crashed Thread:  0  Dispatch queue: com.apple.main-thread
> 
> Application Specific Information:
> Assertion failed: (xgui), function AB_Gui_ReadDialogPrefs, file abgui.c, line 246.
> 
> 
> Thread 0 Crashed:  Dispatch queue: com.apple.main-thread
> 0   libSystem.B.dylib             	0x00007fff872913d6 __kill + 10
> 1   libSystem.B.dylib             	0x00007fff87331972 abort + 83
> 2   libSystem.B.dylib             	0x00007fff8731e9b4 __pthread_markcancel + 0
> 3   libaqbanking.32.dylib         	0x0000000108573cf3 AB_Gui_ReadDialogPrefs + 196
> 4   libgwenhywfar.59.dylib        	0x0000000108af17b1 GWEN_Gui_ReadDialogPrefs + 86
> 5   libgwenhywfar.59.dylib        	0x0000000108aec7de GWEN_Dialog_new + 395
> 6   libaqbanking.32.dylib         	0x0000000108578e0a AB_SetupDialog_new + 46
> 7   libgncmod-aqbanking.dylib     	0x00000001080b2c51 dai_wizard_button_clicked_cb + 266 (druid-ab-initial.c:241)
> 
> On relaunching gnucash, getting into the wizard works, and retrieving transactions works, but if I again try to open the setup wizard after having retrieved transactions, I get the same crash.
> 
> Martin thinks that it's related to gnucash still using multiple GWEN_GUI objects: 
> "Only one of those objects is derived from AB_GUI, and for reasons unknown to me at some times a false GUI object is chosen by Gnucash ...   I recommended multiple times to really, really create the GUI object and init AqBanking once only (!), preferably upon plugin init."

So do a debug build and find out for sure.

Regards,
John Ralls