src/hotspot/share/gc/z/zRootsIterator.cpp

@@ -270,10 +270,11 @@
     _cld_claim(cld_claim),
     _jni_handles(this),
     _vm_handles(this),
     _class_loader_data_graph(this) {
   ZStatTimer timer(ZSubPhaseConcurrentRootsSetup);
+  ClassLoaderDataGraph::clear_claimed_marks(cld_claim);
 }
 
 ZConcurrentRootsIterator::~ZConcurrentRootsIterator() {
   ZStatTimer timer(ZSubPhaseConcurrentRootsTeardown);
 }