1 files changed, 5 insertions, 1 deletions
diff --git a/test/114-ParallelGC/src/Main.java b/test/114-ParallelGC/src/Main.java
index df2243c27f..46029cf26a 100644
--- a/test/114-ParallelGC/src/Main.java
+++ b/test/114-ParallelGC/src/Main.java
@@ -53,13 +53,17 @@ public class Main implements Runnable {
         }
 
         // Allocate objects to definitely run GC before quitting.
+        ArrayList<Object> l = new ArrayList<Object>();
         try {
-            ArrayList<Object> l = new ArrayList<Object>();
             for (int i = 0; i < 100000; i++) {
                 l.add(new ArrayList<Object>(i));
             }
         } catch (OutOfMemoryError oom) {
         }
+        // Make the (outer) ArrayList unreachable. Note it may still
+        // be reachable under an interpreter or a compiler without a
+        // liveness analysis.
+        l = null;
         new ArrayList<Object>(50);
     }