3ed98222a7
Move tests out of runtime to jvmti/RedefineClasses Reviewed-by: sspitsyn, dcubed, cjplummer, hseigel, mseledtsov
113 lines
4.4 KiB
Java
113 lines
4.4 KiB
Java
/*
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* Copyright (c) 2016, 2019, 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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* @library /test/lib
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* @summary Test that redefinition reuses metaspace blocks that are freed
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* @modules java.base/jdk.internal.misc
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* @modules java.instrument
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* jdk.jartool/sun.tools.jar
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* @run main RedefineLeak buildagent
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* @run main/othervm/timeout=6000 RedefineLeak runtest
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*/
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import java.io.FileNotFoundException;
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import java.io.PrintWriter;
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import java.lang.RuntimeException;
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import java.lang.instrument.ClassFileTransformer;
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import java.lang.instrument.Instrumentation;
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import java.security.ProtectionDomain;
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import java.lang.instrument.IllegalClassFormatException;
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import jdk.test.lib.process.ProcessTools;
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import jdk.test.lib.process.OutputAnalyzer;
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public class RedefineLeak {
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static class Tester {}
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static class LoggingTransformer implements ClassFileTransformer {
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static int transformCount = 0;
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public LoggingTransformer() {}
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public byte[] transform(ClassLoader loader, String className, Class classBeingRedefined,
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ProtectionDomain protectionDomain, byte[] classfileBuffer) throws IllegalClassFormatException {
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transformCount++;
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if (transformCount % 1000 == 0) System.out.println("transformCount:" + transformCount);
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return null;
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}
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}
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public static void premain(String agentArgs, Instrumentation inst) throws Exception {
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LoggingTransformer t = new LoggingTransformer();
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inst.addTransformer(t, true);
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{
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Class demoClass = Class.forName("RedefineLeak$Tester");
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for (int i = 0; i < 10000; i++) {
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inst.retransformClasses(demoClass);
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}
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}
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System.gc();
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}
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private static void buildAgent() {
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try {
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ClassFileInstaller.main("RedefineLeak");
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} catch (Exception e) {
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throw new RuntimeException("Could not write agent classfile", e);
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}
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try {
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PrintWriter pw = new PrintWriter("MANIFEST.MF");
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pw.println("Premain-Class: RedefineLeak");
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pw.println("Agent-Class: RedefineLeak");
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pw.println("Can-Redefine-Classes: true");
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pw.println("Can-Retransform-Classes: true");
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pw.close();
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} catch (FileNotFoundException e) {
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throw new RuntimeException("Could not write manifest file for the agent", e);
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}
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sun.tools.jar.Main jarTool = new sun.tools.jar.Main(System.out, System.err, "jar");
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if (!jarTool.run(new String[] { "-cmf", "MANIFEST.MF", "redefineagent.jar", "RedefineLeak.class" })) {
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throw new RuntimeException("Could not write the agent jar file");
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}
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}
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public static void main(String argv[]) throws Exception {
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if (argv.length == 1 && argv[0].equals("buildagent")) {
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buildAgent();
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return;
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}
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if (argv.length == 1 && argv[0].equals("runtest")) {
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// run outside of jtreg to not OOM on jtreg classes that are loaded after metaspace is full
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String[] javaArgs1 = { "-XX:MetaspaceSize=12m", "-XX:MaxMetaspaceSize=12m",
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"-javaagent:redefineagent.jar", "RedefineLeak"};
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ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(javaArgs1);
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OutputAnalyzer output = new OutputAnalyzer(pb.start());
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output.shouldContain("transformCount:10000");
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}
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}
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}
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