HotSpot is using single threaded (“MT-unsafe”) strtok function in compilerDirectives.cpp
Andre.Gillet at nuance.com
Wed Nov 28 22:15:25 UTC 2018
I’m posting this to the group since I can’t open a bug report against OpenJDK – I only have browsing privileges.
compilerDirectives.cpp is using the MT-Unsafe strtok function. This is causing some JVM crashes with our application under linux-x86_64 since some of our native code run via JNI is also using strtok. Fixing either our code or HotSpot to use strtok_r resolves the issue. We started seeing this problem after upgrading to OpenJDK 11 from Oracle JDK 8, which didn’t trigger any crashes.
Fixing this would make the compiler immune from other JNI code (or other JVM code) that could be using strtok.
The following details a survey of HotSpot that was done a long time ago to identify all occurrences of MT-unsafe functions:
I understand the latter goes beyond the scope of the compiler group.
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