Assign an unused instance to a variable.

RELNOTES=n/a PiperOrigin-RevId: 437337214
google · Mar 25, 2022 · a0ff759 · a0ff759
1 parent 6742cf9
commit a0ff759
Showing 1 changed file with 11 additions and 6 deletions.
diff --git a/caliper-util/src/main/java/com/google/caliper/util/Util.java b/caliper-util/src/main/java/com/google/caliper/util/Util.java
@@ -119,12 +119,17 @@ public static void forceGc() {
     System.gc();
     System.runFinalization();
     final CountDownLatch latch = new CountDownLatch(1);
-    new Object() {
-      @Override
-      protected void finalize() {
-        latch.countDown();
-      }
-    };
+
+    // Create, then throw away, an object that will trigger the latch when finalized away.
+    Object unused =
+        new Object() {
+          @Override
+          protected void finalize() {
+            latch.countDown();
+          }
+        };
+    unused = null;
+
     System.gc();
     System.runFinalization();
     try {