On Wed, 14 Dec 2022 23:13:30 GMT, Coleen Phillimore <cole...@openjdk.org> wrote:

>> This is a simple cleanup RFE to get rid of old-style C casts in relation to 
>> JavaThread.
>> 
>> In many cases involving NULL/nullptr the cast could just be dropped. 
>> Sometimes a static cast is needed to disambiguate overloads.
>> 
>> A couple of reinterpret_cast are needed when doing int/ptr conversion.
>> 
>> static_cast is used for void* conversion.
>> 
>> The other changes should be self explanatory.
>> 
>> The changes in
>> 
>> src/hotspot/os_cpu/bsd_aarch64/javaThread_bsd_aarch64.cpp
>> src/hotspot/os_cpu/windows_aarch64/javaThread_windows_aarch64.cpp
>> 
>> are a bit more extensive. That code was using an alias for `this` which is 
>> completely unnecessary (and the alias creation was using the cast). This 
>> could be factored out if thought necessary.
>> 
>> I grep'd as best I could for the old C-style casts but can't be certain I 
>> got them all.
>> 
>> Testing: 
>>  - all builds in our tiers1-5
>>  - local linux x64 product, slowdebug and fastdebug
>>  - GHA
>>  - Sanity testing tiers 1-3
>> Thanks.
>
> Looks good!

Thanks @coleenp !

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PR: https://git.openjdk.org/jdk/pull/11682

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