diff -r 103d1261f1f4 -r db357034b763 src/share/vm/jfr/recorder/repository/jfrChunkWriter.cpp
--- a/src/share/vm/jfr/recorder/repository/jfrChunkWriter.cpp	Fri Dec 06 12:42:29 2019 +0100
+++ b/src/share/vm/jfr/recorder/repository/jfrChunkWriter.cpp	Tue Jun 16 11:03:04 2020 +0800
@@ -32,9 +32,8 @@
 #include "runtime/os.hpp"
 #include "runtime/os.hpp"
 
-const u2 JFR_VERSION_MAJOR = 2;
-const u2 JFR_VERSION_MINOR = 0;
-
+static const u2 JFR_VERSION_MAJOR = 2;
+static const u2 JFR_VERSION_MINOR = 0;
 static const size_t MAGIC_LEN = 4;
 static const size_t FILEHEADER_SLOT_SIZE = 8;
 static const size_t CHUNK_SIZE_OFFSET = 8;
@@ -79,14 +78,14 @@
   return is_open;
 }
 
-size_t JfrChunkWriter::close(intptr_t metadata_offset) {
+size_t JfrChunkWriter::close(int64_t metadata_offset) {
   write_header(metadata_offset);
   this->flush();
   this->close_fd();
-  return size_written();
+  return (size_t)size_written();
 }
 
-void JfrChunkWriter::write_header(intptr_t metadata_offset) {
+void JfrChunkWriter::write_header(int64_t metadata_offset) {
   assert(this->is_valid(), "invariant");
   // Chunk size
   this->write_be_at_offset((jlong)size_written(), CHUNK_SIZE_OFFSET);
@@ -106,15 +105,15 @@
   _chunkstate->set_path(chunk_path);
 }
 
-intptr_t JfrChunkWriter::size_written() const {
+int64_t JfrChunkWriter::size_written() const {
   return this->is_valid() ? this->current_offset() : 0;
 }
 
-intptr_t JfrChunkWriter::previous_checkpoint_offset() const {
+int64_t JfrChunkWriter::previous_checkpoint_offset() const {
   return _chunkstate->previous_checkpoint_offset();
 }
 
-void JfrChunkWriter::set_previous_checkpoint_offset(intptr_t offset) {
+void JfrChunkWriter::set_previous_checkpoint_offset(int64_t offset) {
   _chunkstate->set_previous_checkpoint_offset(offset);
 }