From e4605fd8af0872e463af01cf7bd238b6c366d7e6 Mon Sep 17 00:00:00 2001
From: Arie Ozarov <ozarov@google.com>
Date: Tue, 22 Mar 2016 19:40:47 -0700
Subject: [PATCH] Update GCloudEmulatorRunner.java

currentVersion may be null when using an older GCLOUD SDK without the searched emulator.
---
 .../java/com/google/api/gax/testing/GCloudEmulatorRunner.java   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/com/google/api/gax/testing/GCloudEmulatorRunner.java b/src/main/java/com/google/api/gax/testing/GCloudEmulatorRunner.java
index 5a2a76f9a..ce4e882af 100644
--- a/src/main/java/com/google/api/gax/testing/GCloudEmulatorRunner.java
+++ b/src/main/java/com/google/api/gax/testing/GCloudEmulatorRunner.java
@@ -81,7 +81,7 @@ private boolean isGCloudInstalled() {
   private boolean isEmulatorUpdateToDate()
       throws IOException, InterruptedException {
     String currentVersion = installedEmulatorVersion(versionPrefix);
-    return currentVersion.compareTo(minVersion) >= 0;
+    return currentVersion != null && currentVersion.compareTo(minVersion) >= 0;
   }
 
   private String installedEmulatorVersion(String versionPrefix)