RFR for bug JDK-8035633 TEST_BUG: java/net/NetworkInterface/Equals.java and some tests failed on windows intermittently

Alan Bateman Alan.Bateman at oracle.com
Tue Feb 25 08:59:23 UTC 2014

On 25/02/2014 08:49, Eric Wang wrote:
> Hi Everyone,
> I'm working on the test bug 
> https://bugs.openjdk.java.net/browse/JDK-8035633, There are 4 tests 
> (one is in a closed test) failed due to NullPointerException.
> All tests failed at similar places "if (isWindows && 
> ni.getDisplayName().contains("Teredo"))", the root cause is the 
> NetworkInterface may return null if no display name is available.
> so the fix is to make sure the display name is not null before calling 
> the method "contains("Teredo")", something like "if (isWindows && 
> displayName != null && displayName.contains("Teredo"))"
> Please let me know if you have any comment. The webrev will be sent 
> after internal review.
Yes, NetworkInterface's getDisplyName is allowed to return null and it 
looks like this wasn't taken into account when these tests were changed 
via JDK-8022963 to skip tunnels. Once you have a patch then net-dev 
would be the best list to bring it to.


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