Some existing JVMCI C++ code leads a static analysis tool to think a nullptr can be passed to `Atomic::PlatformStore<4ull>::operator()<int>` (https://github.com/openjdk/jdk/blob/b75c134facc4dbd9f171024a12994dda818c5471/src/hotspot/share/runtime/atomic.hpp#L616-L624) from code paths in jvmciCompilerToVM.cpp that use the get_current_thread helper function (https://github.com/openjdk/jdk/blob/b75c134facc4dbd9f171024a12994dda818c5471/src/hotspot/share/jvmci/jvmciCompilerToVM.cpp#L182-L189).