Hi Chris, Thanks! I did not see that.
IMHO, you can move SetEventNotificationMode() to JNI_OnLoad(). If so, we ensure that CheckLockObject() is called after all initialization is completed. We can keep jvmtiEnv instance. Yasumasa 2017-12-08 1:51 GMT+09:00 Chris Plummer <chris.plum...@oracle.com>: > Hi Yasumasa, > > It is safe in my version because I move it to a global ref. See the > NewGlobalRef() call in my webrev. > > thanks, > > Chris > > > On 12/7/17 6:14 AM, Yasumasa Suenaga wrote: >> >> Hi Chris, >> >> I added testcase of GetOwnedMonitorInfo in JDK-8185164. >> I have concern your change to cache the result of FindClass(). >> >> According to [1], FindClass() calls find_class_from_class_loader(), it >> returns JNI local value. >> Is it safe to cache? >> >> So I called FindClass each time in original commit. >> >> >> Thanks, >> >> Yasumasa >> >> >> [1] >> http://hg.openjdk.java.net/jdk/hs/file/32fd4be602d5/src/hotspot/share/prims/jvm.cpp#l3450 >> >> >> On 2017/12/07 16:44, Chris Plummer wrote: >>> >>> New webrev: >>> >>> https://bugs.openjdk.java.net/browse/JDK-8191229 >>> http://cr.openjdk.java.net/~cjplummer/8191229/webrev.01/ >>> >>> testClass now initialized from JNI_OnLoad(), and use memset to clear >>> callbacks. Also updated to use JVMTI_VERSION_9 when calling GetEnv(). >>> >>> thanks, >>> >>> Chris >>> >