1f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Licensed to the Apache Software Foundation (ASF) under one or more 3f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * contributor license agreements. See the NOTICE file distributed with 4f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * this work for additional information regarding copyright ownership. 5f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * The ASF licenses this file to You under the Apache License, Version 2.0 6f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * (the "License"); you may not use this file except in compliance with 7f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the License. You may obtain a copy of the License at 8f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 9f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 10f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 11f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 12f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 13f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * See the License for the specific language governing permissions and 15f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * limitations under the License. 16f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 17f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 18f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectpackage tests.api.java.lang.ref; 19f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 20f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport dalvik.annotation.TestTargets; 21f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport dalvik.annotation.TestLevel; 22f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport dalvik.annotation.TestTargetNew; 23f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport dalvik.annotation.TestTargetClass; 24f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 25f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport java.lang.ref.PhantomReference; 26f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport java.lang.ref.Reference; 27f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport java.lang.ref.ReferenceQueue; 28f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 29f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project//TODO: write a test to verify that the referent's finalize() happens 30f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project// before the PhantomReference is enqueued. 31f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 32f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project@TestTargetClass(PhantomReference.class) 33f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectpublic class PhantomReferenceTest extends junit.framework.TestCase { 34f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project static Boolean bool; 35f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public boolean isCalled = false; 36f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project protected void doneSuite() { 37f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool = null; 38f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 39f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 40f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 41f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * @tests java.lang.ref.PhantomReference#get() 42f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 43f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @TestTargetNew( 44f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project level = TestLevel.COMPLETE, 45f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project notes = "", 46f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project method = "get", 47f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project args = {} 48f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ) 49f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public void test_get() { 50f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ReferenceQueue rq = new ReferenceQueue(); 51f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool = new Boolean(false); 52f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project PhantomReference pr = new PhantomReference(bool, rq); 53f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assertNull("get() should return null.", pr.get()); 54f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pr.enqueue(); 55f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assertNull("get() should return null.", pr.get()); 56f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project pr.clear(); 57f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assertNull("get() should return null.", pr.get()); 58f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 59f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 60f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 61f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * @tests java.lang.Runtime#gc() 62f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 63f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @TestTargetNew( 64f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project level = TestLevel.PARTIAL, 65f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project notes = "Interaction test with Runtime.getRuntime().gc().", 66f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project method = "get", 67f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project args = {} 68f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ) 69f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public void test_gcInteraction() { 70f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project class TestPhantomReference<T> extends PhantomReference<T> { 71f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public TestPhantomReference(T referent, 72f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ReferenceQueue<? super T> q) { 73f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project super(referent, q); 74f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 75f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public boolean enqueue() { 76f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // Initiate another GC from inside enqueue() to 77f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // see if it causes any problems inside the VM. 78f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Runtime.getRuntime().gc(); 79f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return super.enqueue(); 80f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 81f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 82f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 83f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project final ReferenceQueue rq = new ReferenceQueue(); 84f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project final PhantomReference[] tprs = new PhantomReference[4]; 85f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 86f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project class TestThread extends Thread { 87f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public void run() { 88f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // Create the object in a separate thread to ensure 89f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // it will be gc'ed. 90f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Object obj = new Object(); 91f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tprs[0] = new TestPhantomReference(obj, rq); 92f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tprs[1] = new TestPhantomReference(obj, rq); 93f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tprs[2] = new TestPhantomReference(obj, rq); 94f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project tprs[3] = new TestPhantomReference(obj, rq); 95f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 96f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 97f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 98f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project try { 99f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Thread t = new TestThread(); 100f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project t.start(); 101f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project t.join(); 102f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project System.gc(); 103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project System.runFinalization(); 104f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 105f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assertNull("get() should return null.", tprs[0].get()); 106f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assertNull("get() should return null.", tprs[1].get()); 107f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assertNull("get() should return null.", tprs[2].get()); 108f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assertNull("get() should return null.", tprs[3].get()); 109f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 110f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (int i = 0; i < 4; i++) { 111f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Reference r = rq.remove(100L); 112f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assertNotNull("Reference should have been enqueued.", r); 113f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 114f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 115f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // These are to make sure that tprs and its elements don't get 116f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // optimized out. 117f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assertNull("get() should return null.", tprs[0].get()); 118f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assertNull("get() should return null.", tprs[1].get()); 119f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assertNull("get() should return null.", tprs[2].get()); 120f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assertNull("get() should return null.", tprs[3].get()); 121f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } catch (InterruptedException e) { 122f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fail("InterruptedException : " + e.getMessage()); 123f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 124f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 125f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 126f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 127f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * @tests java.lang.ref.PhantomReference#PhantomReference(java.lang.Object, 128f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * java.lang.ref.ReferenceQueue) 129f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 130f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @TestTargetNew( 131f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project level = TestLevel.COMPLETE, 132f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project notes = "", 133f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project method = "PhantomReference", 134f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project args = {java.lang.Object.class, java.lang.ref.ReferenceQueue.class} 135f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ) 136f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public void test_ConstructorLjava_lang_ObjectLjava_lang_ref_ReferenceQueue() { 137f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project ReferenceQueue rq = new ReferenceQueue(); 138f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project bool = new Boolean(true); 139f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project try { 140f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project PhantomReference pr = new PhantomReference(bool, rq); 141f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // Allow the finalizer to run to potentially enqueue 142f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project Thread.sleep(1000); 143f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assertTrue("Initialization failed.", !pr.isEnqueued()); 144f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } catch (Exception e) { 145f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project fail("Exception during test : " + e.getMessage()); 146f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 147f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // need a reference to bool so the jit does not optimize it away 148f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assertTrue("should always pass", bool.booleanValue()); 149f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 150f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project boolean exception = false; 151f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project try { 152f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project new PhantomReference(bool, null); 153f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } catch (NullPointerException e) { 154f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project exception = true; 155f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 156f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project assertTrue("Should not throw NullPointerException", !exception); 157f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 158f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 159f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project protected void setUp() { 160f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 161f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 162f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project protected void tearDown() { 163f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 164f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 165