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src/hotspot/share/gc/shared/genCollectedHeap.cpp

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@@ -1242,16 +1242,18 @@
   assert(heap->kind() == CollectedHeap::Serial ||
          heap->kind() == CollectedHeap::CMS, "Invalid name");
   return (GenCollectedHeap*) heap;
 }
 
+#if INCLUDE_SERIALGC
 void GenCollectedHeap::prepare_for_compaction() {
   // Start by compacting into same gen.
   CompactPoint cp(_old_gen);
   _old_gen->prepare_for_compaction(&cp);
   _young_gen->prepare_for_compaction(&cp);
 }
+#endif // INCLUDE_SERIALGC
 
 void GenCollectedHeap::verify(VerifyOption option /* ignored */) {
   log_debug(gc, verify)("%s", _old_gen->name());
   _old_gen->verify();
 
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