diff -r bd0a95bec96b -r 9042ffe5b7fe src/hotspot/share/utilities/hashtable.cpp
--- a/src/hotspot/share/utilities/hashtable.cpp	Fri May 04 09:29:14 2018 +0200
+++ b/src/hotspot/share/utilities/hashtable.cpp	Fri May 04 11:41:35 2018 +0200
@@ -31,6 +31,7 @@
 #include "classfile/placeholders.hpp"
 #include "classfile/protectionDomainCache.hpp"
 #include "classfile/stringTable.hpp"
+#include "logging/log.hpp"
 #include "memory/allocation.inline.hpp"
 #include "memory/metaspaceShared.hpp"
 #include "memory/resourceArea.hpp"
@@ -242,9 +243,7 @@
 // For oops and Strings the size of the literal is interesting. For other types, nobody cares.
 static int literal_size(ConstantPool*) { return 0; }
 static int literal_size(Klass*)        { return 0; }
-#if INCLUDE_ALL_GCS
 static int literal_size(nmethod*)      { return 0; }
-#endif
 
 static int literal_size(Symbol *symbol) {
   return symbol->size() * HeapWordSize;
@@ -447,11 +446,9 @@
 #endif // PRODUCT
 
 // Explicitly instantiate these types
-#if INCLUDE_ALL_GCS
 template class Hashtable<nmethod*, mtGC>;
 template class HashtableEntry<nmethod*, mtGC>;
 template class BasicHashtable<mtGC>;
-#endif
 template class Hashtable<ConstantPool*, mtClass>;
 template class RehashableHashtable<Symbol*, mtSymbol>;
 template class RehashableHashtable<oop, mtSymbol>;