RFR: 8273933: [TESTBUG] Test must run without preallocated exceptions [v3]

[Tobias Hartmann]

On Mon, 20 Sep 2021 14:26:40 GMT, Nils Eliasson <neliasso at openjdk.org> wrote:

>> Executing vmTestbase/jit/t/t105/t105.java with the fix for (JDK-8273277) makes the test fail when run with the following arguments:
>> 
>> -XX:+TieredCompilation
>> -XX:Tier0BackedgeNotifyFreqLog=0
>> -XX:Tier2BackedgeNotifyFreqLog=0
>> -XX:Tier3BackedgeNotifyFreqLog=0
>> -XX:Tier2BackEdgeThreshold=1
>> -XX:Tier3BackEdgeThreshold=1
>> -XX:Tier4BackEdgeThreshold=1
>> -Xbatch
>> 
>> The problem is that the tests expects a detailed message from ArrayIndexOutOfBoundsException, but this test will trigger the optimization that reuses preallocated exceptions that have an empty detailed exceptions.
>> 
>> It is wrong for the test to assume exceptions messages.
>> 
>> Solution disable preallocated exceptions with the flag -XX:-ProfileTraps.
>
> Nils Eliasson has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Update t105.java

Looks good to me!

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Marked as reviewed by thartmann (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/5560