--- old/src/hotspot/share/gc/g1/g1CollectedHeap.hpp 2018-04-27 11:07:39.676366269 +0200 +++ new/src/hotspot/share/gc/g1/g1CollectedHeap.hpp 2018-04-27 11:07:39.387357390 +0200 @@ -512,8 +512,9 @@ // Process any reference objects discovered. void process_discovered_references(G1ParScanThreadStateSet* per_thread_states); - // If during an initial mark pause we install a pending list head which is not otherwise reachable - // ensure that it is marked in the bitmap for concurrent marking to discover. + // If during an initial mark pause we may install a pending list head which is not + // otherwise reachable ensure that it is marked in the bitmap for concurrent marking + // to discover. void make_pending_list_reachable(); // Merges the information gathered on a per-thread basis for all worker threads