--- a/test/jdk/javax/sound/midi/Gervill/RiffReaderWriter/Close.java	Thu Nov 23 10:44:29 2017 +0530
+++ b/test/jdk/javax/sound/midi/Gervill/RiffReaderWriter/Close.java	Thu Nov 23 23:05:52 2017 -0800
@@ -22,6 +22,7 @@
  */
 
 /* @test
+   @bug 8191384
    @summary Test RiffReader close method
    @modules java.desktop/com.sun.media.sound
 */
@@ -54,6 +55,8 @@
             FileInputStream fis = new FileInputStream(tempfile);
             reader = new RIFFReader(fis);
             reader.close();
+            // second close should not throw any exceptions
+            reader.close();
             reader = null;
         }
         finally