--- old/src/hotspot/share/gc/g1/g1Arguments.cpp	2018-10-12 11:21:11.303915353 -0400
+++ new/src/hotspot/share/gc/g1/g1Arguments.cpp	2018-10-12 11:21:10.816842676 -0400
@@ -75,7 +75,7 @@
 void G1Arguments::initialize() {
   GCArguments::initialize();
   assert(UseG1GC, "Error");
-  FLAG_SET_DEFAULT(ParallelGCThreads, Abstract_VM_Version::parallel_worker_threads());
+  FLAG_SET_DEFAULT(ParallelGCThreads, VM_Version::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);