From e3d6cdd072d153f3d23fc59e6326abf182353bb8 Mon Sep 17 00:00:00 2001
From: stack <stack@apache.org>
Date: Fri, 3 Apr 2015 15:32:50 -0700
Subject: [PATCH] HBASE-13382 IntegrationTestBigLinkedList should use
 SecureRandom (Dima Spivak)

---
 .../hadoop/hbase/test/IntegrationTestBigLinkedList.java     | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/hbase-it/src/test/java/org/apache/hadoop/hbase/test/IntegrationTestBigLinkedList.java b/hbase-it/src/test/java/org/apache/hadoop/hbase/test/IntegrationTestBigLinkedList.java
index 6f28e20f69f..104c5da9d50 100644
--- a/hbase-it/src/test/java/org/apache/hadoop/hbase/test/IntegrationTestBigLinkedList.java
+++ b/hbase-it/src/test/java/org/apache/hadoop/hbase/test/IntegrationTestBigLinkedList.java
@@ -23,6 +23,7 @@ import java.io.DataOutput;
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InterruptedIOException;
+import java.security.SecureRandom;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Iterator;
@@ -306,7 +307,8 @@ public class IntegrationTestBigLinkedList extends IntegrationTestBase {
         public void initialize(InputSplit arg0, TaskAttemptContext context)
             throws IOException, InterruptedException {
           numNodes = context.getConfiguration().getLong(GENERATOR_NUM_ROWS_PER_MAP_KEY, 25000000);
-          rand = new Random();
+          // Use SecureRandom to avoid issue described in HBASE-13382.
+          rand = new SecureRandom();
         }
 
         @Override
@@ -1359,7 +1361,7 @@ public class IntegrationTestBigLinkedList extends IntegrationTestBase {
       if (cmd.hasOption('n')) {
         maxQueries = Long.parseLong(cmd.getOptionValue("n"));
       }
-      Random rand = new Random();
+      Random rand = new SecureRandom();
       boolean isSpecificStart = cmd.hasOption('s');
       byte[] startKey = isSpecificStart ? Bytes.toBytesBinary(cmd.getOptionValue('s')) : null;
       int logEvery = cmd.hasOption('l') ? Integer.parseInt(cmd.getOptionValue('l')) : 1;