1 /* 2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @bug 8072008 27 * @library /testlibrary /test/lib ../patches 28 * @modules java.base/jdk.internal.misc 29 * java.base/jdk.internal.vm.annotation 30 * 31 * @build java.base/java.lang.invoke.MethodHandleHelper 32 * @build sun.hotspot.WhiteBox 33 * @run main/bootclasspath/othervm -XX:+IgnoreUnrecognizedVMOptions 34 * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI 35 * -Xbatch -XX:-TieredCompilation -XX:CICompilerCount=1 36 * -XX:+FoldStableValues 37 * compiler.jsr292.NonInlinedCall.GCTest 38 */ 39 40 package compiler.jsr292.NonInlinedCall; 41 42 import jdk.internal.vm.annotation.DontInline; 43 import jdk.internal.vm.annotation.Stable; 44 import sun.hotspot.WhiteBox; 45 46 import java.lang.invoke.MethodHandle; 47 import java.lang.invoke.MethodHandleHelper; 48 import java.lang.invoke.MethodHandleHelper.NonInlinedReinvoker; 49 import java.lang.invoke.MethodHandles; 50 import java.lang.invoke.MethodType; 51 import java.lang.ref.PhantomReference; 52 import java.lang.ref.Reference; 53 import java.lang.ref.ReferenceQueue; 54 55 import static jdk.test.lib.Asserts.assertEquals; 56 57 public class GCTest { 58 static final MethodHandles.Lookup LOOKUP = MethodHandleHelper.IMPL_LOOKUP; 59 60 static class T { 61 static int f1() { return 0; } 62 static int f2() { return 1; } 63 } 64 65 static @Stable MethodHandle mh; 66 static PhantomReference<Object> lform; 67 68 static final ReferenceQueue<Object> rq = new ReferenceQueue<>(); 69 static final WhiteBox WB = WhiteBox.getWhiteBox(); 70 71 @DontInline 72 static int invokeBasic() { 73 try { 74 return MethodHandleHelper.invokeBasicI(mh); 75 } catch (Throwable e) { 76 throw new Error(e); 77 } 78 } 79 80 static void test(int expected) { 81 for (int i = 0; i < 20_000; i++) { 82 invokeBasic(); 83 } 84 assertEquals(invokeBasic(), expected); 85 } 86 87 public static void main(String[] args) throws Exception { 88 mh = NonInlinedReinvoker.make( 89 LOOKUP.findStatic(T.class, "f1", MethodType.methodType(int.class))); 90 91 // Monitor LambdaForm GC 92 lform = new PhantomReference<>(MethodHandleHelper.getLambdaForm(mh), rq); 93 94 test(0); 95 WB.clearInlineCaches(); 96 test(0); 97 98 mh = NonInlinedReinvoker.make( 99 LOOKUP.findStatic(T.class, "f2", MethodType.methodType(int.class))); 100 101 Reference<?> ref = null; 102 while (ref == null) { 103 WB.fullGC(); 104 try { 105 ref = rq.remove(1000); 106 } catch (InterruptedException e) { /*ignore*/ } 107 } 108 109 test(1); 110 WB.clearInlineCaches(); 111 test(1); 112 113 System.out.println("TEST PASSED"); 114 } 115 }