src/share/classes/java/io/RandomAccessFile.java

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 1994, 2007, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1994, 2011, 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

@@ -588,13 +588,20 @@
 
         /*
          * Decrement FD use count associated with this stream.
          * The count got incremented by FileDescriptor during its construction.
          */
-        fd.decrementAndGetUseCount();
+        int useCount = fd.decrementAndGetUseCount();
+ 
+        /*
+         * If FileDescriptor is still in use by another stream, we
+         * will not close it.
+         */
+        if (useCount <= 0) {
         close0();
     }
+    }
 
     //
     //  Some "reading/writing Java data types" methods stolen from
     //  DataInputStream and DataOutputStream.
     //