--- a/src/hotspot/share/gc/g1/g1Arguments.cpp	Fri Dec 07 18:00:41 2018 +0100
+++ b/src/hotspot/share/gc/g1/g1Arguments.cpp	Fri Dec 07 12:46:31 2018 +0800
@@ -30,9 +30,9 @@
 #include "gc/g1/g1HeapVerifier.hpp"
 #include "gc/g1/heapRegion.hpp"
 #include "gc/shared/gcArguments.inline.hpp"
+#include "gc/shared/workerPolicy.hpp"
 #include "runtime/globals.hpp"
 #include "runtime/globals_extension.hpp"
-#include "runtime/vm_version.hpp"
 
 size_t G1Arguments::conservative_max_heap_alignment() {
   return HeapRegion::max_region_size();
@@ -77,7 +77,7 @@
 void G1Arguments::initialize() {
   GCArguments::initialize();
   assert(UseG1GC, "Error");
-  FLAG_SET_DEFAULT(ParallelGCThreads, VM_Version::parallel_worker_threads());
+  FLAG_SET_DEFAULT(ParallelGCThreads, WorkerPolicy::parallel_worker_threads());
   if (ParallelGCThreads == 0) {
     assert(!FLAG_IS_DEFAULT(ParallelGCThreads), "The default value for ParallelGCThreads should not be 0.");
     vm_exit_during_initialization("The flag -XX:+UseG1GC can not be combined with -XX:ParallelGCThreads=0", NULL);