diff --git a/test/hotspot/jtreg/gc/cms/DisableResizePLAB.java b/test/hotspot/jtreg/gc/cms/DisableResizePLAB.java
index 5c8d2e822b3..093b85a7a5d 100644
--- a/test/hotspot/jtreg/gc/cms/DisableResizePLAB.java
+++ b/test/hotspot/jtreg/gc/cms/DisableResizePLAB.java
@@ -41,6 +41,7 @@ public class DisableResizePLAB {
         }
         long startTime = System.currentTimeMillis();
         while (System.currentTimeMillis() - startTime < 10_000) {
+            @SuppressWarnings("unused")
             Object o = new byte[1024];
         }
     }