--- old/src/hotspot/share/prims/jvm.cpp	2020-02-26 18:40:06.487969076 -0800
+++ new/src/hotspot/share/prims/jvm.cpp	2020-02-26 18:40:05.833943485 -0800
@@ -3525,6 +3525,13 @@
   HeapShared::initialize_from_archived_subgraph(k);
 JVM_END
 
+JVM_ENTRY(void, JVM_LinkClassesForCDS(JNIEnv *env))
+  JVMWrapper("JVM_LinkClassesForCDS");
+  if (DynamicDumpSharedSpaces) {
+    MetaspaceShared::link_and_cleanup_shared_classes(false, THREAD);
+  }
+JVM_END
+
 // Returns an array of all live Thread objects (VM internal JavaThreads,
 // jvmti agent threads, and JNI attaching threads  are skipped)
 // See CR 6404306 regarding JNI attaching threads