8331352: error: template-id not allowed for constructor/destructor in…

… C++20

Reviewed-by: mdoerr
Backport-of: 45792c5829fb1d5ee016c4a1fd6badb5d2b4239c

src/hotspot/share/utilities/chunkedList.hpp

@@ -44,7 +44,7 @@ template <class T, MEMFLAGS F> class ChunkedList : public CHeapObj<F> {
   }
 
  public:
-  ChunkedList<T, F>() : _top(_values), _next_used(NULL), _next_free(NULL) {}
+  ChunkedList() : _top(_values), _next_used(NULL), _next_free(NULL) {}
 
   bool is_full() const {
     return _top == end();

src/hotspot/share/utilities/events.hpp

@@ -99,7 +99,7 @@ template <class T> class EventLogBase : public EventLog {
   EventRecord<T>* _records;
 
  public:
-  EventLogBase<T>(const char* name, const char* handle, int length = LogEventsBufferEntries):
+  EventLogBase(const char* name, const char* handle, int length = LogEventsBufferEntries):
     _mutex(Mutex::event, name, true, Mutex::_safepoint_check_never),
     _name(name),
     _handle(handle),

src/hotspot/share/utilities/linkedlist.hpp

@@ -82,7 +82,7 @@ template <class E> class LinkedListNode : public ResourceObj {
 template <class E> class LinkedList : public ResourceObj {
  protected:
   LinkedListNode<E>*    _head;
-  NONCOPYABLE(LinkedList<E>);
+  NONCOPYABLE(LinkedList);
 
  public:
   LinkedList() : _head(NULL) { }