1 files changed, 4 insertions, 3 deletions
diff --git a/vdslib/src/test/java/com/yahoo/vdslib/distribution/DistributionTestCase.java b/vdslib/src/test/java/com/yahoo/vdslib/distribution/DistributionTestCase.java
index 415c4ffe8f0..f211b01415c 100644
--- a/vdslib/src/test/java/com/yahoo/vdslib/distribution/DistributionTestCase.java
+++ b/vdslib/src/test/java/com/yahoo/vdslib/distribution/DistributionTestCase.java
@@ -21,10 +21,11 @@ import java.text.ParseException;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
+import java.util.Deque;
+import java.util.LinkedList;
 import java.util.List;
 import java.util.Random;
 import java.util.Set;
-import java.util.Stack;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
@@ -294,7 +295,7 @@ public class DistributionTestCase {
                 .redundancy(redundancy);
         builder.group(new StorDistributionConfig.Group.Builder()
                 .name("invalid").index("invalid").partitions(partitions));
-        Stack<Integer> nodeIndexes = new Stack<>();
+        LinkedList<Integer> nodeIndexes = new LinkedList<>();
         for (int i=0, n=getNodeCount(depth, branchCount, nodesPerLeaf); i<n; ++i) nodeIndexes.push(i);
         Collections.shuffle(nodeIndexes, new Random(123));
         addLevel(builder, "top", "", branchCount, depth, partitions, nodesPerLeaf, nodeIndexes);
@@ -302,7 +303,7 @@ public class DistributionTestCase {
     }
     private void addLevel(StorDistributionConfig.Builder builder, String namePrefix, String indexPrefix,
                           int branchCount, int depth, String partitions, int nodesPerLeaf,
-                          Stack<Integer> nodes)
+                          Deque<Integer> nodes)
     {
         for (int i=0; i<branchCount; ++i) {
             StorDistributionConfig.Group.Builder group