Quelle CDSJDITest.java
Sprache: JAVA
/*
* Copyright ( c ) 2013 , 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 .
*
* Please contact Oracle , 500 Oracle Parkway , Redwood Shores , CA 94065 USA
* or visit www . oracle . com if you need additional information or have any
* questions .
*/
/*
* Helper superclass for launching JDI tests out of the CDS archive .
*/
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.process.ProcessTools;
import java.io.*;
import java.util.ArrayList;
import sun.tools.jar.Main;
public class CDSJDITest {
private static final String classesDir = System.getProperty("test.classes" );
public static void runTest(String testname, String[] jarClasses) throws Exception {
File jarClasslistFile = makeClassList(jarClasses);
String appJar = buildJar(testname, jarClasses);
// These are the arguments passed to createJavaProcessBuilder() to launch
// the JDI test.
String[] testArgs = {
// JVM Args:
// These first three properties are setup by jtreg, and must be passed
// to the JDI test subprocess because it needs them in order to
// pass them to the subprocess it will create for the debuggee. This
// is how the -javaopts are passed to the debuggee. See
// VMConnection.getDebuggeeVMOptions().
getPropOpt("test.classes" ),
getPropOpt("test.java.opts" ),
getPropOpt("test.vm.opts" ),
// Pass -showversion to the JDI test just so we get a bit of trace output.
"-showversion" ,
// Main class:
testname,
// Args to the Main Class:
// These argument all follow the above <testname> argument, and are
// in fact passed to <testname>.main() as java arguments. <testname> will
// pass them as JVM arguments to the debuggee process it creates.
"-Xbootclasspath/a:" + appJar,
"-XX:+UnlockDiagnosticVMOptions" ,
"-Xlog:class+path=info" ,
"-XX:SharedArchiveFile=./SharedArchiveFile.jsa" ,
"-Xshare:on" ,
"-showversion"
};
// Dump the archive
ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
"-Xbootclasspath/a:" + appJar,
"-XX:+UnlockDiagnosticVMOptions" , "-XX:SharedArchiveFile=./SharedArchiveFile.jsa" ,
"-XX:ExtraSharedClassListFile=" + jarClasslistFile.getPath(),
"-Xshare:dump" , "-Xlog:cds" );
OutputAnalyzer outputDump = executeAndLog(pb, "exec" );
for (String jarClass : jarClasses) {
outputDump.shouldNotContain("Cannot find " + jarClass);
}
outputDump.shouldContain("Loading classes to share" );
outputDump.shouldHaveExitValue(0 );
// Run the test specified JDI test
pb = ProcessTools.createTestJvm(testArgs);
OutputAnalyzer outputRun = executeAndLog(pb, "exec" );
try {
outputRun.shouldContain("sharing" );
outputRun.shouldHaveExitValue(0 );
} catch (RuntimeException e) {
outputRun.shouldContain("Unable to use shared archive" );
outputRun.shouldHaveExitValue(1 );
}
}
public static String getPropOpt(String prop) {
String propVal = System.getProperty(prop);
if (propVal == null ) propVal = "" ;
System.out.println(prop + ": '" + propVal + "'" );
return "-D" + prop + "=" + propVal;
}
public static File makeClassList(String appClasses[]) throws Exception {
File classList = getOutputFile("test.classlist" );
FileOutputStream fos = new FileOutputStream(classList);
PrintStream ps = new PrintStream(fos);
addToClassList(ps, appClasses);
ps.close();
fos.close();
return classList;
}
public static OutputAnalyzer executeAndLog(ProcessBuilder pb, String logName) throws Exception {
long started = System.currentTimeMillis();
OutputAnalyzer output = ProcessTools.executeProcess(pb);
writeFile(getOutputFile(logName + ".stdout" ), output.getStdout());
writeFile(getOutputFile(logName + ".stderr" ), output.getStderr());
System.out.println("[ELAPSED: " + (System.currentTimeMillis() - started) + " ms]" );
System.out.println("[STDOUT]\n" + output.getStdout());
System.out.println("[STDERR]\n" + output.getStderr());
return output;
}
private static void writeFile(File file, String content) throws Exception {
FileOutputStream fos = new FileOutputStream(file);
PrintStream ps = new PrintStream(fos);
ps.print(content);
ps.close();
fos.close();
}
public static File getOutputFile(String name) {
File dir = new File(System.getProperty("test.classes" , "." ));
return new File(dir, getTestNamePrefix() + name);
}
private static void addToClassList(PrintStream ps, String classes[]) throws IOException {
if (classes != null ) {
for (String s : classes) {
ps.println(s);
}
}
}
private static String testNamePrefix;
private static String getTestNamePrefix() {
if (testNamePrefix == null ) {
StackTraceElement[] elms = (new Throwable()).getStackTrace();
if (elms.length > 0 ) {
for (StackTraceElement n: elms) {
if ("main" .equals(n.getMethodName())) {
testNamePrefix = n.getClassName() + "-" ;
break ;
}
}
}
if (testNamePrefix == null ) {
testNamePrefix = "" ;
}
}
return testNamePrefix;
}
private static String buildJar(String jarName, String ...classNames)
throws Exception {
String jarFullName = classesDir + File.separator + jarName + ".jar" ;
createSimpleJar(classesDir, jarFullName, classNames);
return jarFullName;
}
private static void createSimpleJar(String jarClassesDir, String jarName,
String[] classNames) throws Exception {
ArrayList<String> args = new ArrayList<String>();
args.add("cf" );
args.add(jarName);
addJarClassArgs(args, jarClassesDir, classNames);
createJar(args);
}
private static void addJarClassArgs(ArrayList<String> args, String jarClassesDir,
String[] classNames) {
for (String name : classNames) {
args.add("-C" );
args.add(jarClassesDir);
args.add(name + ".class" );
}
}
private static void createJar(ArrayList<String> args) {
Main jarTool = new Main(System.out, System.err, "jar" );
if (!jarTool.run(args.toArray(new String[1 ]))) {
throw new RuntimeException("jar operation failed" );
}
}
}
Messung V0.5 in Prozent C=90 H=92 G=90
¤ Dauer der Verarbeitung: 0.5 Sekunden
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2026-10-11
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