97 lines
3.8 KiB
Java
97 lines
3.8 KiB
Java
/*
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* Copyright (c) 2019, 2024, 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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import java.nio.charset.Charset;
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import java.nio.charset.StandardCharsets;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import jdk.test.lib.Utils;
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import jdk.test.lib.process.OutputAnalyzer;
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import jdk.test.lib.process.ProcessTools;
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import jdk.test.lib.JDKToolLauncher;
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/*
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* @test
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* @bug 8222491 8273187 8308033
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* @summary Tests if we handle the encoding of jcmd output correctly.
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* @library /test/lib
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* @run main JcmdOutputEncodingTest
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*/
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public class JcmdOutputEncodingTest {
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public static void main(String[] args) throws Exception {
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testThreadDump();
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}
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private static void testThreadDump() throws Exception {
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String marker = "markerName" + "\u00e4\u0bb5".repeat(60);
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Charset cs = StandardCharsets.UTF_8;
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Thread.currentThread().setName(marker);
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JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("jcmd");
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launcher.addVMArgs(Utils.getTestJavaOpts());
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launcher.addVMArg("-Dfile.encoding=" + cs);
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launcher.addVMArg("-Dsun.stdout.encoding=" + cs);
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launcher.addToolArg(Long.toString(ProcessTools.getProcessId()));
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boolean isVirtualThread = Thread.currentThread().isVirtual();
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Path threadDumpFile = null;
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if (isVirtualThread) {
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// "jcmd Thread.print" will not print thread dumps of virtual threads.
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// So we use "Thread.dump_to_file" command instead and dump the thread
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// stacktraces in a file
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threadDumpFile = Files.createTempFile(Path.of("."), "jcmd", ".tdump").toAbsolutePath();
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launcher.addToolArg("Thread.dump_to_file");
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launcher.addToolArg("-overwrite");
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launcher.addToolArg(threadDumpFile.toString());
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} else {
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launcher.addToolArg("Thread.print");
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}
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ProcessBuilder processBuilder = new ProcessBuilder();
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processBuilder.command(launcher.getCommand());
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OutputAnalyzer output = ProcessTools.executeProcess(processBuilder, null, cs);
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output.shouldHaveExitValue(0);
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if (isVirtualThread) {
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// verify the file containing the thread dump has the expected text
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try (var br = Files.newBufferedReader(threadDumpFile, cs)) {
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String line = null;
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boolean found = false;
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while ((line = br.readLine()) != null) {
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if (line.contains(marker)) {
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found = true;
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break;
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}
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}
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if (!found) {
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output.reportDiagnosticSummary();
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throw new RuntimeException("'" + marker + "' missing in thread dump in file "
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+ threadDumpFile);
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}
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}
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} else {
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output.shouldContain(marker);
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}
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}
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}
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