/*
* Copyright ( c ) 2005 , 2020 , 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.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.io.IOException;
import jdk.test.lib.JDKToolLauncher;
import jdk.test.lib.Utils;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.apps.LingeredApp;
/*
* @ test
* @ summary Unit test for jinfo utility
*
* @ library / test / lib
* @ modules java . base / jdk . internal . misc
* java . management
* jdk . jcmd
*
* @ run main JInfoTest
*/
public class JInfoTest {
private static ProcessBuilder processBuilder = new ProcessBuilder();
public static void main(String[] args) throws Exception {
classNameMatch();
setMultipleFlags();
setFlag();
}
private static void setFlag() throws Exception {
System.out.println("#### setFlag ####" );
LingeredApp app1 = new JInfoTestLingeredApp();
LingeredApp app2 = new JInfoTestLingeredApp();
try {
String[] params = new String[0 ];;
LingeredApp.startAppExactJvmOpts(app1, params);
LingeredApp.startAppExactJvmOpts(app2, params);
OutputAnalyzer output = jinfo("-flag" , "MinHeapFreeRatio=1" , "JInfoTestLingeredApp" );
output.shouldHaveExitValue(0 );
output = jinfo("-flag" , "MinHeapFreeRatio" , "JInfoTestLingeredApp" );
output.shouldHaveExitValue(0 );
documentMatch(output.getStdout(), ".*MinHeapFreeRatio=1.*MinHeapFreeRatio=1.*" );
} finally {
// LingeredApp.stopApp can throw an exception
try {
JInfoTestLingeredApp.stopApp(app1);
} finally {
JInfoTestLingeredApp.stopApp(app2);
}
}
}
private static void setMultipleFlags() throws Exception {
System.out.println("#### setMultipleFlags ####" );
OutputAnalyzer output = jinfo("-sysprops" , "-flag" , "MinHeapFreeRatio=1" , "-flags" , "JInfoTestLingeredApp" );
output.shouldHaveExitValue(1 );
}
private static void classNameMatch() throws Exception {
System.out.println("#### classNameMatch ####" );
LingeredApp app1 = new JInfoTestLingeredApp();
LingeredApp app2 = new JInfoTestLingeredApp();
try {
String[] params = new String[0 ];
LingeredApp.startAppExactJvmOpts(app1, params);
LingeredApp.startAppExactJvmOpts(app2, params);
OutputAnalyzer output = jinfo("JInfoTestLingeredApp" );
output.shouldHaveExitValue(0 );
// "Runtime Environment" written once per proc
documentMatch(output.getStdout(), ".*Runtime Environment.*Runtime Environment.*" );
} finally {
// LingeredApp.stopApp can throw an exception
try {
JInfoTestLingeredApp.stopApp(app1);
} finally {
JInfoTestLingeredApp.stopApp(app2);
}
}
}
private static void documentMatch(String data, String pattern){
Matcher matcher = Pattern.compile(pattern, Pattern.DOTALL).matcher(data);
if (!matcher.find()) {
throw new RuntimeException("'" + pattern + "' missing from stdout \n" );
}
}
private static OutputAnalyzer jinfo(String... toolArgs) throws Exception {
JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("jinfo" );
launcher.addVMArgs(Utils.getTestJavaOpts());
if (toolArgs != null ) {
for (String toolArg : toolArgs) {
launcher.addToolArg(toolArg);
}
}
processBuilder.command(launcher.getCommand());
OutputAnalyzer output = ProcessTools.executeProcess(processBuilder);
return output;
}
}
// Sometime there is LingeredApp's from other test still around
class JInfoTestLingeredApp extends LingeredApp {
}
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¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-06-10)
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