Bug 4413 - ThreadAbortException are being rethrown when they don't relate to current thread.
Summary: ThreadAbortException are being rethrown when they don't relate to current thr...
Alias: None
Product: Runtime
Classification: Mono
Component: JIT ()
Version: unspecified
Hardware: PC Linux
: --- normal
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2012-04-12 17:44 UTC by Tom Hindle
Modified: 2012-04-23 09:20 UTC (History)
4 users (show)

Is this bug a regression?: ---
Last known good build:

Test case reproducing problem. (1.09 KB, text/x-csharp)
2012-04-12 17:44 UTC, Tom Hindle

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Description Tom Hindle 2012-04-12 17:44:13 UTC
Created attachment 1662 [details]
Test case reproducing problem.

ThreadAbortException are normally automatically rethrown after being caught with exception handlers.

ThreadAbortException can be handled and stopped from being rethrown by calling Thread.ResetAbort in their Exception handler.

If the caught ThreadAbortException relates to another thread then calling Thread.ResetAbort shouldn't be necessary (and isn't possible because ResetAbort works on the current thread.) as the ThreadAbortException should not be rethrown.

Mono is automatically rethrowing ThreadAbortException that relate to a different thread.

For example, where action is a Action delegate and result is a IAsyncResult:

try { action.EndInvoke(result); } catch(ThreadAbortException) { } should catch and handle the ThreadAbortException. ThreadAbortException should not be automatically rethrown. 

To reproduce run attached test case:
and press Enter three times.

Actual result:
"a ThreadAbortException!" is displayed.

Expected Result:
"a ThreadAbortException!" should NOT be displayed.
Comment 1 Zoltan Varga 2012-04-23 09:20:01 UTC
Fixed in master/2.10.