src/hotspot/share/logging/logFileOutput.cpp

8176717: GC log file handle leaked to child processes
8176809: UL Log file handles leaked to child processes

*** 243,253 ****
                         _file_name, _file_count_max_digits, _current_file);
      archive();
      increment_file_count();
    }
  
!   _stream = fopen(_file_name, FileOpenMode);
    if (_stream == NULL) {
      errstream->print_cr("Error opening log file '%s': %s",
                          _file_name, strerror(errno));
      return false;
    }
--- 243,253 ----
                         _file_name, _file_count_max_digits, _current_file);
      archive();
      increment_file_count();
    }
  
!   _stream = os::fopen_retain(_file_name, FileOpenMode);
    if (_stream == NULL) {
      errstream->print_cr("Error opening log file '%s': %s",
                          _file_name, strerror(errno));
      return false;
    }
***************
*** 332,342 ****
  
    // Archive the current log file
    archive();
  
    // Open the active log file using the same stream as before
!   _stream = fopen(_file_name, FileOpenMode);
    if (_stream == NULL) {
      jio_fprintf(defaultStream::error_stream(), "Could not reopen file '%s' during log rotation (%s).\n",
                  _file_name, os::strerror(errno));
      return;
    }
--- 332,342 ----
  
    // Archive the current log file
    archive();
  
    // Open the active log file using the same stream as before
!   _stream = os::fopen_retain(_file_name, FileOpenMode);
    if (_stream == NULL) {
      jio_fprintf(defaultStream::error_stream(), "Could not reopen file '%s' during log rotation (%s).\n",
                  _file_name, os::strerror(errno));
      return;
    }