diff -r acc2744fd84b -r 87014063ec81 hotspot/src/share/vm/gc/g1/g1CollectedHeap.cpp
--- a/hotspot/src/share/vm/gc/g1/g1CollectedHeap.cpp	Wed Sep 16 16:25:02 2015 +0200
+++ b/hotspot/src/share/vm/gc/g1/g1CollectedHeap.cpp	Thu Sep 17 16:07:06 2015 +0200
@@ -73,13 +73,6 @@
 
 size_t G1CollectedHeap::_humongous_object_threshold_in_words = 0;
 
-// turn it on so that the contents of the young list (scan-only /
-// to-be-collected) are printed at "strategic" points before / during
-// / after the collection --- this is useful for debugging
-#define YOUNG_LIST_VERBOSE 0
-// CURRENT STATUS
-// This file is under construction.  Search for "FIXME".
-
 // INVARIANTS/NOTES
 //
 // All allocation activity covered by the G1CollectedHeap interface is
@@ -4079,29 +4072,12 @@
         // the possible verification above.
         double sample_start_time_sec = os::elapsedTime();
 
-#if YOUNG_LIST_VERBOSE
-        gclog_or_tty->print_cr("\nBefore recording pause start.\nYoung_list:");
-        _young_list->print();
-        g1_policy()->print_collection_set(g1_policy()->inc_cset_head(), gclog_or_tty);
-#endif // YOUNG_LIST_VERBOSE
-
         g1_policy()->record_collection_pause_start(sample_start_time_sec);
 
-#if YOUNG_LIST_VERBOSE
-        gclog_or_tty->print_cr("\nAfter recording pause start.\nYoung_list:");
-        _young_list->print();
-#endif // YOUNG_LIST_VERBOSE
-
         if (collector_state()->during_initial_mark_pause()) {
           concurrent_mark()->checkpointRootsInitialPre();
         }
 
-#if YOUNG_LIST_VERBOSE
-        gclog_or_tty->print_cr("\nBefore choosing collection set.\nYoung_list:");
-        _young_list->print();
-        g1_policy()->print_collection_set(g1_policy()->inc_cset_head(), gclog_or_tty);
-#endif // YOUNG_LIST_VERBOSE
-
         double time_remaining_ms = g1_policy()->finalize_young_cset_part(target_pause_time_ms);
         g1_policy()->finalize_old_cset_part(time_remaining_ms);
 
@@ -4157,11 +4133,6 @@
         assert(check_young_list_empty(false /* check_heap */),
           "young list should be empty");
 
-#if YOUNG_LIST_VERBOSE
-        gclog_or_tty->print_cr("Before recording survivors.\nYoung List:");
-        _young_list->print();
-#endif // YOUNG_LIST_VERBOSE
-
         g1_policy()->record_survivor_regions(_young_list->survivor_length(),
                                              _young_list->first_survivor_region(),
                                              _young_list->last_survivor_region());
@@ -4197,12 +4168,6 @@
 
         allocate_dummy_regions();
 
-#if YOUNG_LIST_VERBOSE
-        gclog_or_tty->print_cr("\nEnd of the pause.\nYoung_list:");
-        _young_list->print();
-        g1_policy()->print_collection_set(g1_policy()->inc_cset_head(), gclog_or_tty);
-#endif // YOUNG_LIST_VERBOSE
-
         _allocator->init_mutator_alloc_region();
 
         {