[11] RFR(XS) 8202773: Unhandled oop in JavaThread::collect_counters

[Vladimir Kozlov]

Thank you, Dan

Vladimir K

On 5/10/18 5:52 AM, Daniel D. Daugherty wrote:
> On 5/9/18 7:47 PM, Vladimir Kozlov wrote:
>> https://bugs.openjdk.java.net/browse/JDK-8202773
>>
>> Based on discussion in bug report MutexLocker should be removed from 
>> this code:
> 
> Thumbs up.
> 
> Dan
> 
> 
>>
>> diff -r ae0ebd3cf949 src/hotspot/share/runtime/thread.cpp
>> --- a/src/hotspot/share/runtime/thread.cpp
>> +++ b/src/hotspot/share/runtime/thread.cpp
>> @@ -1467,7 +1467,6 @@
>>
>>  void JavaThread::collect_counters(typeArrayOop array) {
>>    if (JVMCICounterSize > 0) {
>> -    MutexLocker tl(Threads_lock);
>>      JavaThreadIteratorWithHandle jtiwh;
>>      for (int i = 0; i < array->length(); i++) {
>>        array->long_at_put(i, _jvmci_old_thread_counters[i]);
>>
>> Tested with tier1,tier2,tier2-graal,hs-precheckin-comp
>>
>