src/jdk.jfr/share/classes/jdk/jfr/internal/dcmd/DCmdDump.java

*** 1,7 ****
  /*
!  * Copyright (c) 2012, 2018, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
--- 1,7 ----
  /*
!  * Copyright (c) 2012, 2019, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
*** 24,33 ****
--- 24,34 ----
   */
  package jdk.jfr.internal.dcmd;
  
  import java.io.IOException;
  import java.nio.file.InvalidPathException;
+ import java.nio.file.Path;
  import java.time.Duration;
  import java.time.Instant;
  import java.time.LocalDate;
  import java.time.LocalDateTime;
  import java.time.LocalTime;
*** 122,131 ****
--- 123,136 ----
              beginTime = Instant.now().minus(duration);
          }
          Recording recording = null;
          if (name != null) {
              recording = findRecording(name);
+             Path dest = recording.getDestination();
+             if ((filename == null) && (dest != null)) {
+                 filename = dest.toString();
+             }
          }
          PlatformRecorder recorder = PrivateAccess.getInstance().getPlatformRecorder();
          synchronized (recorder) {
              dump(recorder, recording, name, filename, maxSize, pathToGcRoots, beginTime, endTime);
          }