hg: jdk9/dev/jdk: 8048840: File.createTempFile has uninformative failure message

[martinrb at google.com]

Changeset: 48f37afb002c
Author:    jmanson
Date:      2014-07-02 14:14 -0700
URL:       http://hg.openjdk.java.net/jdk9/dev/jdk/rev/48f37afb002c

8048840: File.createTempFile has uninformative failure message
Reviewed-by: martin, alanb

! src/share/classes/java/io/File.java
! test/java/io/File/NulFile.java