1 files changed, 45 insertions, 0 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
new file mode 100644
index 0000000..66ac1a4
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+++ b/support/src/test/java/libcore/java/lang/ref/FinalizationTester.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2011 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package libcore.java.lang.ref;
+
+/**
+ * Triggers finalizers to run. Note that live-precise bugs may interfere with
+ * analysis of what is reachable. Unreachable references in local frames may not
+ * be finalized even after a call to {@link #induceFinalization}. To work
+ * around, create finalizable objects in helper methods. http://b/4191345
+ */
+public final class FinalizationTester {
+    private FinalizationTester() {}
+
+    public static void induceFinalization() {
+        System.gc();
+        enqueueReferences();
+        System.runFinalization();
+    }
+
+    public static void enqueueReferences() {
+        /*
+         * Hack. We don't have a programmatic way to wait for the reference queue
+         * daemon to move references to the appropriate queues.
+         */
+        try {
+            Thread.sleep(100);
+        } catch (InterruptedException e) {
+            throw new AssertionError();
+        }
+    }
+}