--- old/src/hotspot/share/runtime/objectMonitor.inline.hpp 2020-02-25 17:43:59.000000000 -0500 +++ new/src/hotspot/share/runtime/objectMonitor.inline.hpp 2020-02-25 17:43:59.000000000 -0500 @@ -89,8 +89,7 @@ // list, we leave those three fields alone; owner == DEFLATER_MARKER // and ref_count < 0 will force any racing threads to retry. The // header field is used by install_displaced_markword_in_object() - // in the last part of the deflation protocol so we cannot check - // its value here. + // to restore the object's header so we cannot check its value here. guarantee(_owner == NULL || _owner == DEFLATER_MARKER, "must be NULL or DEFLATER_MARKER: owner=" INTPTR_FORMAT, p2i(_owner));