RFR(S) 8004872: Early loading of HashMap under -XX:+AggressiveOpts can be removed

Calvin Cheung calvin.cheung at oracle.com
Tue Jul 9 17:14:11 PDT 2013


I've updated the webrev at the same location:
     http://cr.openjdk.java.net/~ccheung/8004872/webrev/

I did build on windows_x64 and linux_x64 and re-ran vm.quick on linux_x64.

Calvin

On 7/9/2013 2:16 PM, Calvin Cheung wrote:
> Thanks for your confirmation.
> I've just found the same and was about to reply.
>
> Calvin
>
> On 7/9/2013 2:14 PM, Christian Thalinger wrote:
>> On Jul 9, 2013, at 1:58 PM, Calvin Cheung <calvin.cheung at oracle.com> 
>> wrote:
>>
>>> Thanks for your review.
>>>
>>> The HashMap class under jdk/src/share/classes/java/util is still there.
>>> So I'm not sure if we can remove that line in vmSymbols.hpp.
>> You can; it's not used elsewhere:
>>
>> $ ack java_util_HashMap src/
>> src/share/vm/classfile/vmSymbols.hpp
>> 109:  template(java_util_HashMap, 
>> "java/util/HashMap")                        \
>>
>> src/share/vm/runtime/thread.cpp
>> 3490:        Klass* tmp_k = 
>> SystemDictionary::find(vmSymbols::java_util_HashMap(), Handle(), 
>> Handle(), CHECK_0);
>> 3493:        Klass* k_o = 
>> SystemDictionary::resolve_or_null(vmSymbols::java_util_HashMap(), 
>> Handle(), Handle(), CHECK_0);
>>
>> -- Chris
>>
>>> Calvin
>>>
>>> On 7/9/2013 1:10 PM, Ioi Lam wrote:
>>>> Maybe this also can be removed?
>>>>
>>>> ./src/share/vm/classfile/vmSymbols.hpp: template(java_util_HashMap, 
>>>> "java/util/HashMap")                        \
>>>>
>>>> - Ioi
>>>>
>>>> On 07/09/2013 12:00 PM, Calvin Cheung wrote:
>>>>> Please review a small fix:
>>>>> http://cr.openjdk.java.net/~ccheung/8004872/webrev/
>>>>>
>>>>> Bug:
>>>>> https://jbs.oracle.com/bugs/browse/JDK-8004872
>>>>> (public bug not available)
>>>>>
>>>>> Summary:
>>>>> The HashMap class under altclasses/java/util in the jdk repo.
>>>>> was removed via another bug fix. Therefore, the initialization 
>>>>> code for
>>>>> that class on the jvm side can also be removed.
>>>>>
>>>>> Testing:
>>>>> JPRT
>>>>> Aurora adhoc vm.quick on Mac OSX
>>>>>     (other platforms in progress)
>>>>>
>>>>> thanks,
>>>>> Calvin
>



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