--- /dev/null 2015-10-30 00:19:45.000000000 +0300 +++ new/test/compiler/jsr292/NonInlinedCall/GCTest.java 2015-10-30 00:19:44.000000000 +0300 @@ -0,0 +1,105 @@ +/* + * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +/* + * @test + * @bug 8072008 + * @library /testlibrary /../../test/lib + * @build GCTest NonInlinedReinvoker + * @run main ClassFileInstaller sun.hotspot.WhiteBox + * sun.hotspot.WhiteBox$WhiteBoxPermission + * java.lang.invoke.GCTest + * java.lang.invoke.GCTest$T + * java.lang.invoke.NonInlinedReinvoker + * jdk.test.lib.Asserts + * @run main/othervm -Xbootclasspath/a:. -XX:+IgnoreUnrecognizedVMOptions + * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI + * -Xbatch -XX:-TieredCompilation -XX:CICompilerCount=1 + * java.lang.invoke.GCTest + */ +package java.lang.invoke; + +import sun.hotspot.WhiteBox; + +import java.lang.ref.*; +import static jdk.test.lib.Asserts.*; + +public class GCTest { + static final MethodHandles.Lookup LOOKUP = MethodHandles.Lookup.IMPL_LOOKUP; + + static class T { + static int f1() { return 0; } + static int f2() { return 1; } + } + + static @Stable MethodHandle mh; + static PhantomReference lform; + + static final ReferenceQueue rq = new ReferenceQueue<>(); + static final WhiteBox WB = WhiteBox.getWhiteBox(); + + @DontInline + static int invokeBasic() { + try { + return (int) mh.invokeBasic(); + } catch (Throwable e) { + throw new Error(e); + } + } + + static void test(int expected) { + for (int i = 0; i < 20_000; i++) { + invokeBasic(); + } + assertEquals(invokeBasic(), expected); + } + + public static void main(String[] args) throws Exception { + mh = NonInlinedReinvoker.make( + LOOKUP.findStatic(T.class, "f1", MethodType.methodType(int.class))); + + // Monitor LambdaForm GC + lform = new PhantomReference<>(mh.form, rq); + + test(0); + WB.clearInlineCaches(); + test(0); + + mh = NonInlinedReinvoker.make( + LOOKUP.findStatic(T.class, "f2", MethodType.methodType(int.class))); + + Reference ref = null; + while (ref == null) { + WB.fullGC(); + try { + ref = rq.remove(1000); + } catch (InterruptedException e) { /*ignore*/ } + } + + test(1); + WB.clearInlineCaches(); + test(1); + + System.out.println("TEST PASSED"); + } +}