Code Review 7076523: TEST_BUG: test/java/net/NetworkInterface/NetParamsTest.java can fail with NPE

Alan Bateman Alan.Bateman at oracle.com
Wed Aug 10 03:47:20 PDT 2011


Chris Hegarty wrote:
> An minor test issue seen when running on a virtual instance. Parent 
> can legitimately be null, so the test should be robust enough to 
> handle this.
>
> > : hg diff NetParamsTest.java
> diff -r cf203f293b4e test/java/net/NetworkInterface/NetParamsTest.java
> --- a/test/java/net/NetworkInterface/NetParamsTest.java Tue Aug 09 
> 16:59:44 2011 +0100
> +++ b/test/java/net/NetworkInterface/NetParamsTest.java Wed Aug 10 
> 11:34:08 2011 +0100
> @@ -45,7 +45,9 @@ public class NetParamsTest {
>          System.out.println("\tPoint to Point: " + 
> netif.isPointToPoint());
>          System.out.println("\tVirtual: " + netif.isVirtual());
>          if (netif.isVirtual()) {
> -            System.out.println("\tParent Interface: " + 
> netif.getParent().getName());
> +            NetworkInterface parent = netif.getParent();
> +            String parentName = parent == null ? "null" : 
> parent.getName();
> +            System.out.println("\tParent Interface: " + 
> parent.getName());
Should this be parentName as I assume parent.getName will NPE here.

-Alan



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