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102 lines
3.6 KiB
Java
102 lines
3.6 KiB
Java
/*
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* Copyright (c) 2025, 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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package gc.NativeWrapperCollection;
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/*
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* @test NativeWrapperCollection
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* @summary Test that native wrappers are collected after becoming not entrant
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* @requires vm.compiler1.enabled
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* @library /test/lib
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* @build jdk.test.whitebox.WhiteBox
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* @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
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* @run main/othervm/native -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
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* gc.NativeWrapperCollection.NativeWrapperCollection
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*/
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import java.lang.reflect.Method;
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import java.util.Iterator;
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import jdk.test.lib.process.OutputAnalyzer;
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import jdk.test.lib.dcmd.JMXExecutor;
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import jdk.test.lib.dcmd.CommandExecutor;
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import jdk.test.whitebox.WhiteBox;
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public class NativeWrapperCollection {
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static {
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System.loadLibrary("nativeWrapperCollection");
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}
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private static final WhiteBox WB = WhiteBox.getWhiteBox();
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static native void method();
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static native void callRegisterNatives(int index);
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public static void main(String[] args) throws Exception {
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Method method = NativeWrapperCollection.class.getDeclaredMethod("method");
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callRegisterNatives(0);
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WB.enqueueMethodForCompilation(method, 1 /* compLevel */);
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while (WB.isMethodQueuedForCompilation(method)) {
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Thread.sleep(50 /* ms */);
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}
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callRegisterNatives(1);
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WB.enqueueMethodForCompilation(method, 1 /* compLevel */);
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while (WB.isMethodQueuedForCompilation(method)) {
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Thread.sleep(50 /* ms */);
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}
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WB.fullGC(); // mark the nmethod as not on stack
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WB.fullGC(); // reclaim the nmethod
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OutputAnalyzer output = new JMXExecutor().execute("Compiler.codelist");
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Iterator<String> lines = output.asLines().iterator();
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boolean foundOne = false;
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while (lines.hasNext()) {
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String line = lines.next();
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if (!line.contains("NativeWrapperCollection.method")) {
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continue;
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}
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if (foundOne) {
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throw new AssertionError("Expected one CodeCache entry for " +
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"'NativeWrapperCollection.method', found at least 2");
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}
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String[] parts = line.split(" ");
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int codeState = Integer.parseInt(parts[2]);
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if (codeState == 1 /* not_entrant */) {
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throw new AssertionError("Unexpected not-entrant entry for " +
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"'NativeWrapperCollection.method'");
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}
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// Found one NativeWrapperCollection.method, exactly one is
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// expected
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foundOne = true;
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}
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}
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}
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