diff -r 9e059253786b -r 456e51e56ea2 src/hotspot/share/gc/g1/g1ParScanThreadState.cpp
--- a/src/hotspot/share/gc/g1/g1ParScanThreadState.cpp	Fri Apr 06 11:37:34 2018 +0200
+++ b/src/hotspot/share/gc/g1/g1ParScanThreadState.cpp	Fri Apr 06 11:41:21 2018 +0200
@@ -66,7 +66,7 @@
   _surviving_young_words = _surviving_young_words_base + PADDING_ELEM_NUM;
   memset(_surviving_young_words, 0, real_length * sizeof(size_t));
 
-  _plab_allocator = new G1DefaultPLABAllocator(_g1h->allocator());
+  _plab_allocator = new G1PLABAllocator(_g1h->allocator());
 
   _dest[InCSetState::NotInCSet]    = InCSetState::NotInCSet;
   // The dest for Young is used when the objects are aged enough to