From ae59f5076a788506bddb7858e9ac255d3796d37c Mon Sep 17 00:00:00 2001
From: chegar <unknown>
Date: Tue, 13 Apr 2010 12:02:06 +0100
Subject: [PATCH] 6706251: api/java_net/NetworkInterface/index.html#misc:
 getDisplayName() returned non null but empty String Reviewed-by: alanb,
 michaelm, andrew

---
 src/share/classes/java/net/NetworkInterface.java | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/share/classes/java/net/NetworkInterface.java b/src/share/classes/java/net/NetworkInterface.java
index 07941b062..eb3327139 100644
--- a/src/share/classes/java/net/NetworkInterface.java
+++ b/src/share/classes/java/net/NetworkInterface.java
@@ -221,11 +221,12 @@ public final class NetworkInterface {
      * A display name is a human readable String describing the network
      * device.
      *
-     * @return the display name of this network interface,
-     *         or null if no display name is available.
+     * @return a non-empty string representing the display name of this network
+     *         interface, or null if no display name is available.
      */
     public String getDisplayName() {
-        return displayName;
+        /* strict TCK conformance */
+        return "".equals(displayName) ? null : displayName;
     }
 
     /**
-- 
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