Modify FinalizationTester to use Runtime.gc()

System.gc() has changed in Android: it doesn't gc every time
any more. Runtime.getRuntime().gc() is more likely to cause
a garbage collection.

Change-Id: I294c98a3b82ccb8867b6667d35c88fe9441110db
Bug: 13097524

1 files changed, 3 insertions, 1 deletions

diff --git a/support/src/test/java/libcore/java/lang/ref/FinalizationTester.java b/support/src/test/java/libcore/java/lang/ref/FinalizationTester.java
index 66ac1a4..d758317 100644
--- a/support/src/test/java/libcore/java/lang/ref/FinalizationTester.java
+++ b/support/src/test/java/libcore/java/lang/ref/FinalizationTester.java
@@ -26,7 +26,9 @@ public final class FinalizationTester {
     private FinalizationTester() {}
 
     public static void induceFinalization() {
-        System.gc();
+        // System.gc() does not garbage collect every time. Runtime.gc() is
+        // more likely to perfom a gc.
+        Runtime.getRuntime().gc();
         enqueueReferences();
         System.runFinalization();
     }