From 16f156125c694cdd4dc72f08eec2587d8842d82f Mon Sep 17 00:00:00 2001
From: yush1ga <yushiga@yahoo-corp.jp>
Date: Fri, 30 Sep 2016 07:25:40 +0900
Subject: [PATCH] Revise null check of ServiceConfigureUtils (#47)

---
 .../com/yahoo/pulsar/broker/ServiceConfigurationUtils.java    | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pulsar-broker-common/src/main/java/com/yahoo/pulsar/broker/ServiceConfigurationUtils.java b/pulsar-broker-common/src/main/java/com/yahoo/pulsar/broker/ServiceConfigurationUtils.java
index a7c0141eafe..30ad82911ef 100644
--- a/pulsar-broker-common/src/main/java/com/yahoo/pulsar/broker/ServiceConfigurationUtils.java
+++ b/pulsar-broker-common/src/main/java/com/yahoo/pulsar/broker/ServiceConfigurationUtils.java
@@ -21,12 +21,14 @@ import org.slf4j.LoggerFactory;
 import java.net.InetAddress;
 import java.net.UnknownHostException;
 
+import static org.apache.commons.lang3.StringUtils.isBlank;
+
 public class ServiceConfigurationUtils {
 
     private static final Logger LOG = LoggerFactory.getLogger(ServiceConfigurationUtils.class);
 
     public static String getDefaultOrConfiguredAddress(String configuredAddress) {
-        if ( configuredAddress == null ) {
+        if (isBlank(configuredAddress)) {
             return unsafeLocalhostResolve();
         }
         return configuredAddress;
-- 
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