| /* |
| * Copyright (c) 2016, 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 8067247 |
| * @modules java.base/jdk.internal.misc |
| * @library /test/lib |
| * |
| * @run main/bootclasspath/othervm -Xcomp -Xbatch |
| * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI |
| * -XX:CompileCommand=compileonly,compiler.jsr292.InvokerGC::test |
| * compiler.jsr292.InvokerGC |
| */ |
| |
| package compiler.jsr292; |
| |
| import sun.hotspot.WhiteBox; |
| |
| import java.lang.invoke.MethodHandle; |
| import java.lang.invoke.MethodHandles; |
| import java.lang.invoke.MethodType; |
| |
| public class InvokerGC { |
| static final WhiteBox WB = WhiteBox.getWhiteBox(); |
| |
| static MethodHandle mh; |
| static { |
| try { |
| mh = MethodHandles.lookup().findStatic(InvokerGC.class, "dummy", MethodType.methodType(void.class)); |
| } catch (Exception e) { |
| throw new Error(e); |
| } |
| } |
| |
| static void dummy() {} |
| |
| static void test() { |
| try { |
| mh.invoke(); |
| } catch (Throwable e) { |
| throw new Error(e); |
| } |
| } |
| |
| public static void main(String[] args) throws Throwable { |
| mh.invoke(); // Pre-generate an invoker for ()V signature |
| |
| test(); // trigger method compilation |
| test(); |
| |
| WB.fullGC(); // WB.fullGC has always clear softref policy. |
| |
| test(); |
| |
| WB.clearInlineCaches(true); // Preserve static stubs. |
| |
| test(); // Trigger call site re-resolution. Invoker LambdaForm should stay the same. |
| |
| System.out.println("TEST PASSED"); |
| } |
| } |