View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0004864 | JEDI VCL | 00 JVCL Components | public | 2009-07-15 03:21 | 2009-08-23 21:38 |
| Reporter | Brian | Assigned To | AHUser | ||
| Priority | normal | Severity | crash | Reproducibility | sometimes |
| Status | resolved | Resolution | fixed | ||
| Product Version | |||||
| Target Version | Fixed in Version | 3.38 | |||
| Summary | 0004864: JvSpeedButton AV | ||||
| Description | I'm having many of my users of an app report crashes to me when they shut down their computer, with JvSpeedButton on last call of the stack with this data: exception class : EAccessViolation exception message : Access violation at address 00573207 in module ''. Read of address 00000004. main thread ($4dc): 00573207 +00f .exe JvSpeedButton TJvGlyphCache.ReturnList 00574bdb +037 .exe JvSpeedButton TJvxButtonGlyph.Invalidate 00574559 +015 .exe JvSpeedButton TJvxButtonGlyph.Destroy 00404464 +008 .exe System 103 +0 TObject.Free 00571b00 +01c .exe JvSpeedButton TJvCustomSpeedButton.Destroy 0057351d +01d .exe JvSpeedButton TJvSpeedButton.Destroy 004fd285 +08d .exe Controls TWinControl.Destroy disassembling: 0040445c public System.TObject.Free: ; function entry point 0040445c 103 eax, eax 0040445e loc_404467 00404460 dl, 1 00404462 ecx, [eax] 00404464 > dword ptr [ecx-4] 00404467 | ||||
| Tags | No tags attached. | ||||
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Please try to use the latest version of the JVCL. If this is still there, please provide the zipped sources of a sample application showing this issue. |
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Any news? |
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I'll try to reproduce the issue in a sample project this week. |
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I have added code that protects JvSpeedButton against this null pointer exception which can only occur if a SpeedButton is destroyed after the unit's finalization block have been executed. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2009-07-15 03:21 | Brian | New Issue | |
| 2009-07-15 08:46 | obones | Note Added: 0015857 | |
| 2009-07-15 08:46 | obones | Status | new => feedback |
| 2009-08-05 12:08 | obones | Note Added: 0015927 | |
| 2009-08-05 12:12 | Brian | Note Added: 0015930 | |
| 2009-08-23 21:38 | AHUser | Note Added: 0016011 | |
| 2009-08-23 21:38 | AHUser | Status | feedback => resolved |
| 2009-08-23 21:38 | AHUser | Fixed in Version | => Daily / SVN |
| 2009-08-23 21:38 | AHUser | Resolution | open => fixed |
| 2009-08-23 21:38 | AHUser | Assigned To | => AHUser |
