diff -r efdbe9b904ad -r f96fcd9e1e1b src/share/vm/gc_implementation/g1/heapRegionManager.cpp
--- a/src/share/vm/gc_implementation/g1/heapRegionManager.cpp	Tue Feb 23 18:58:36 2016 -0500
+++ b/src/share/vm/gc_implementation/g1/heapRegionManager.cpp	Thu Jun 14 09:15:08 2018 -0700
@@ -432,7 +432,7 @@
     HeapRegion* hr = _regions.get_by_index(i);
     guarantee(hr != NULL, err_msg("invariant: i: %u", i));
     guarantee(!prev_committed || hr->bottom() == prev_end,
-              err_msg("invariant i: %u "HR_FORMAT" prev_end: "PTR_FORMAT,
+              err_msg("invariant i: %u " HR_FORMAT " prev_end: " PTR_FORMAT,
                       i, HR_FORMAT_PARAMS(hr), p2i(prev_end)));
     guarantee(hr->hrm_index() == i,
               err_msg("invariant: i: %u hrm_index(): %u", i, hr->hrm_index()));