/*
* Copyright ( c ) 2005 , 2021 , 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 .
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import java.util.Arrays;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import jdk.test.lib.Utils;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.JDKToolLauncher;
/*
* @ test
* @ bug 8273187
* @ summary Unit test for jstack utility
* @ library / test / lib
* @ run main BasicJStackTest
*/
public class BasicJStackTest {
private static ProcessBuilder processBuilder = new ProcessBuilder();
public static void main(String[] args) throws Exception {
testJstackNoArgs();
testJstack_l();
testJstackUTF8Encoding();
}
private static void testJstackNoArgs() throws Exception {
String marker = "testJstackNoArgs" ;
OutputAnalyzer output = jstack(marker);
output.shouldHaveExitValue(0 );
output.shouldContain(marker);
}
private static void testJstack_l() throws Exception {
String marker = "testJstack_l" ;
OutputAnalyzer output = jstack(marker, "-l" );
output.shouldHaveExitValue(0 );
output.shouldContain(marker);
}
private static void testJstackUTF8Encoding() throws Exception {
String marker = "markerName" + "\u00e4\u0bb5" .repeat(60 );
OutputAnalyzer output = jstack(marker);
output.shouldHaveExitValue(0 );
output.shouldContain(marker);
}
private static OutputAnalyzer jstack(String marker, String... toolArgs) throws Exception {
Charset cs = StandardCharsets.UTF_8;
Thread .currentThread().setName(marker);
JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("jstack" );
launcher.addVMArgs(Utils.getFilteredTestJavaOpts("-XX:+UsePerfData" ));
launcher.addVMArg("-XX:+UsePerfData" );
launcher.addVMArg("-Dfile.encoding=" + cs);
launcher.addVMArg("-Dsun.stdout.encoding=" + cs);
if (toolArgs != null ) {
for (String toolArg : toolArgs) {
launcher.addToolArg(toolArg);
}
}
launcher.addToolArg(Long .toString(ProcessTools.getProcessId()));
processBuilder.command(launcher.getCommand());
System.out.println(Arrays.toString(processBuilder.command().toArray()).replace("," , "" ));
OutputAnalyzer output = ProcessTools.executeProcess(processBuilder, null , cs);
System.out.println(output.getOutput());
return output;
}
}
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