--- old/src/share/vm/gc/g1/ptrQueue.cpp	2016-02-11 13:39:17.810075978 -0500
+++ new/src/share/vm/gc/g1/ptrQueue.cpp	2016-02-11 13:39:17.094035377 -0500
@@ -109,8 +109,8 @@
 
 void PtrQueueSet::initialize(Monitor* cbl_mon,
                              Mutex* fl_lock,
-                             int process_completed_threshold,
-                             int max_completed_queue,
+                             size_t process_completed_threshold,
+                             size_t max_completed_queue,
                              PtrQueueSet *fl_owner) {
   _max_completed_queue = max_completed_queue;
   _process_completed_threshold = process_completed_threshold;
@@ -248,16 +248,17 @@
   }
   _n_completed_buffers++;
 
-  if (!_process_completed && _process_completed_threshold >= 0 &&
+  if (!_process_completed &&
       _n_completed_buffers >= _process_completed_threshold) {
     _process_completed = true;
-    if (_notify_when_complete)
+    if (_notify_when_complete) {
       _cbl_mon->notify();
+    }
   }
   DEBUG_ONLY(assert_completed_buffer_list_len_correct_locked());
 }
 
-int PtrQueueSet::completed_buffers_list_length() {
+size_t PtrQueueSet::completed_buffers_list_length() {
   int n = 0;
   BufferNode* cbn = _completed_buffers_head;
   while (cbn != NULL) {