diff --git a/test/hotspot/jtreg/gc/nvdimm/TestAllocateOldGenAtError.java b/test/hotspot/jtreg/gc/nvdimm/TestAllocateOldGenAtError.java
index 6ced99811be..55f60f8607e 100644
--- a/test/hotspot/jtreg/gc/nvdimm/TestAllocateOldGenAtError.java
+++ b/test/hotspot/jtreg/gc/nvdimm/TestAllocateOldGenAtError.java
@@ -44,7 +44,7 @@ public class TestAllocateOldGenAtError {
   private static ArrayList<String> commonOpts;
 
   public static void main(String args[]) throws Exception {
-    commonOpts = new ArrayList();
+    commonOpts = new ArrayList<>();
 
     String testVmOptsStr = System.getProperty("test.java.opts");
     if (!testVmOptsStr.isEmpty()) {
@@ -93,7 +93,7 @@ public class TestAllocateOldGenAtError {
   }
 
   private static OutputAnalyzer runTest(String... extraFlags) throws Exception {
-    ArrayList<String> testOpts = new ArrayList();
+    ArrayList<String> testOpts = new ArrayList<>();
     Collections.addAll(testOpts, commonOpts.toArray(new String[commonOpts.size()]));
     Collections.addAll(testOpts, extraFlags);