107 lines
3.5 KiB
Java
107 lines
3.5 KiB
Java
/*
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* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8072008
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* @library /testlibrary /test/lib
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* @compile GCTest.java NonInlinedReinvoker.java
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* @run main ClassFileInstaller sun.hotspot.WhiteBox
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* sun.hotspot.WhiteBox$WhiteBoxPermission
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* java.lang.invoke.GCTest
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* java.lang.invoke.GCTest$T
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* java.lang.invoke.NonInlinedReinvoker
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* jdk.test.lib.Asserts
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* @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions
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* -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
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* -Xbatch -XX:-TieredCompilation -XX:CICompilerCount=1
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* java.lang.invoke.GCTest
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*/
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package java.lang.invoke;
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import sun.hotspot.WhiteBox;
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import jdk.internal.vm.annotation.DontInline;
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import jdk.internal.vm.annotation.Stable;
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import java.lang.ref.*;
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import static jdk.test.lib.Asserts.*;
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public class GCTest {
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static final MethodHandles.Lookup LOOKUP = MethodHandles.Lookup.IMPL_LOOKUP;
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static class T {
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static int f1() { return 0; }
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static int f2() { return 1; }
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}
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static @Stable MethodHandle mh;
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static PhantomReference<LambdaForm> lform;
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static final ReferenceQueue<LambdaForm> rq = new ReferenceQueue<>();
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static final WhiteBox WB = WhiteBox.getWhiteBox();
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@DontInline
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static int invokeBasic() {
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try {
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return (int) mh.invokeBasic();
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} catch (Throwable e) {
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throw new Error(e);
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}
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}
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static void test(int expected) {
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for (int i = 0; i < 20_000; i++) {
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invokeBasic();
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}
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assertEquals(invokeBasic(), expected);
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}
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public static void main(String[] args) throws Exception {
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mh = NonInlinedReinvoker.make(
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LOOKUP.findStatic(T.class, "f1", MethodType.methodType(int.class)));
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// Monitor LambdaForm GC
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lform = new PhantomReference<>(mh.form, rq);
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test(0);
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WB.clearInlineCaches();
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test(0);
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mh = NonInlinedReinvoker.make(
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LOOKUP.findStatic(T.class, "f2", MethodType.methodType(int.class)));
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Reference<?> ref = null;
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while (ref == null) {
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WB.fullGC();
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try {
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ref = rq.remove(1000);
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} catch (InterruptedException e) { /*ignore*/ }
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}
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test(1);
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WB.clearInlineCaches();
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test(1);
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System.out.println("TEST PASSED");
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}
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}
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