--- a/src/hotspot/share/prims/whitebox.cpp	Fri Feb 16 12:18:09 2018 +0100
+++ b/src/hotspot/share/prims/whitebox.cpp	Thu Feb 15 11:39:42 2018 -0800
@@ -1740,6 +1740,10 @@
 #endif // INCLUDE_CDS
 WB_END
 
+WB_ENTRY(jboolean, WB_IsJavaHeapArchiveSupported(JNIEnv* env))
+  return MetaspaceShared::is_heap_object_archiving_allowed();
+WB_END
+
 
 #if INCLUDE_CDS
 
@@ -2116,6 +2120,8 @@
   {CC"getResolvedReferences", CC"(Ljava/lang/Class;)Ljava/lang/Object;", (void*)&WB_GetResolvedReferences},
   {CC"areOpenArchiveHeapObjectsMapped",   CC"()Z",    (void*)&WB_AreOpenArchiveHeapObjectsMapped},
   {CC"isCDSIncludedInVmBuild",            CC"()Z",    (void*)&WB_IsCDSIncludedInVmBuild },
+  {CC"isJavaHeapArchiveSupported",      CC"()Z",      (void*)&WB_IsJavaHeapArchiveSupported },
+
   {CC"clearInlineCaches0",  CC"(Z)V",                 (void*)&WB_ClearInlineCaches },
   {CC"handshakeWalkStack", CC"(Ljava/lang/Thread;Z)I", (void*)&WB_HandshakeWalkStack },
   {CC"addCompilerDirective",    CC"(Ljava/lang/String;)I",