--- a/src/hotspot/share/gc/shared/generationSpec.cpp	Thu May 02 10:38:00 2019 +0200
+++ b/src/hotspot/share/gc/shared/generationSpec.cpp	Mon Apr 15 11:47:46 2019 +0200
@@ -42,31 +42,18 @@
   switch (name()) {
 #if INCLUDE_SERIALGC
     case Generation::DefNew:
-      return new DefNewGeneration(rs, init_size());
+      return new DefNewGeneration(rs, _init_size, _min_size, _max_size);
 
     case Generation::MarkSweepCompact:
-      return new TenuredGeneration(rs, init_size(), remset);
+      return new TenuredGeneration(rs, _init_size, _min_size, _max_size, remset);
 #endif
 
 #if INCLUDE_CMSGC
     case Generation::ParNew:
-      return new ParNewGeneration(rs, init_size());
+      return new ParNewGeneration(rs, _init_size, _min_size, _max_size);
 
     case Generation::ConcurrentMarkSweep: {
-      assert(UseConcMarkSweepGC, "UseConcMarkSweepGC should be set");
-      if (remset == NULL) {
-        vm_exit_during_initialization("Rem set incompatibility.");
-      }
-      // Otherwise
-      // The constructor creates the CMSCollector if needed,
-      // else registers with an existing CMSCollector
-
-      ConcurrentMarkSweepGeneration* g = NULL;
-      g = new ConcurrentMarkSweepGeneration(rs, init_size(), remset);
-
-      g->initialize_performance_counters();
-
-      return g;
+      return new ConcurrentMarkSweepGeneration(rs, _init_size, _min_size, _max_size, remset);
     }
 #endif // INCLUDE_CMSGC