8251923: "Invalid JNI handle" assertion failure in JVMCICompiler::force_comp_at_level_simple()

Reviewed-by: kvn, dnsimon

Author: nick-arm

src/hotspot/share/jvmci/jvmciRuntime.cpp

@@ -893,8 +893,11 @@ void JVMCIRuntime::initialize_HotSpotJVMCIRuntime(JVMCI_TRAPS) {
 
   // This should only be called in the context of the JVMCI class being initialized
   JVMCIObject result = JVMCIENV->call_HotSpotJVMCIRuntime_runtime(JVMCI_CHECK);
+  result = JVMCIENV->make_global(result);
+
+  OrderAccess::storestore();  // Ensure handle is fully constructed before publishing
+  _HotSpotJVMCIRuntime_instance = result;
 
-  _HotSpotJVMCIRuntime_instance = JVMCIENV->make_global(result);
   JVMCI::_is_initialized = true;
 }