/*
* Copyright ( c ) 2016 , 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 .
*/
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.List;
import java.util.Properties;
import java.util.spi.ToolProvider;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import tests.Helper;
import tests.JImageGenerator;
import tests.JImageGenerator.JLinkTask;
/*
* @ test
* @ bug 8168925
* @ summary MODULES property should be topologically ordered and space - separated list
* @ library . . / lib
* @ modules java . base / jdk . internal . jimage
* jdk . jdeps / com . sun . tools . classfile
* jdk . jlink / jdk . tools . jlink . internal
* jdk . jlink / jdk . tools . jmod
* jdk . jlink / jdk . tools . jimage
* jdk . compiler
* jdk . jshell
*
* @ build tests . *
* @ run main ModuleNamesOrderTest
*/
public class ModuleNamesOrderTest {
static final ToolProvider JLINK_TOOL = ToolProvider.findFirst("jlink" )
.orElseThrow(() ->
new RuntimeException("jlink tool not found" )
);
public static void main(String[] args) throws Exception {
Helper helper = Helper.newHelper();
if (helper == null ) {
System.err.println("Test not run" );
return ;
}
testDependences(helper);
testModulesOrder(helper);
}
private static List<String> modulesProperty(Path outputDir, String modulePath, String... roots)
throws IOException
{
JLinkTask jlinkTask = JImageGenerator.getJLinkTask()
.modulePath(modulePath)
.output(outputDir);
Stream.of(roots).forEach(jlinkTask::addMods);
jlinkTask.call().assertSuccess();
File release = new File(outputDir.toString(), "release" );
if (!release.exists()) {
throw new AssertionError("release not generated" );
}
Properties props = new Properties();
try (FileReader reader = new FileReader(release)) {
props.load(reader);
}
String modules = props.getProperty("MODULES" );
if (!modules.startsWith("\" java.base ")) {
throw new AssertionError("MODULES should start with 'java.base'" );
}
if (modules.charAt(0 ) != '"' || modules.charAt(modules.length()-1 ) != '"' ) {
throw new AssertionError("MODULES value should be double quoted" );
}
return Stream.of(modules.substring(1 , modules.length()-1 ).split("\\s+" ))
.collect(Collectors.toList());
}
private static void testDependences(Helper helper) throws IOException {
Path outputDir = helper.createNewImageDir("test" );
List<String> modules = modulesProperty(outputDir, helper.defaultModulePath(),
"jdk.jshell" );
String last = modules.get(modules.size()-1 );
if (!last.equals("jdk.jshell" )) {
throw new AssertionError("Unexpected MODULES value: " + modules);
}
checkDependency(modules, "java.logging" , "java.base" );
checkDependency(modules, "jdk.compiler" , "java.compiler" );
checkDependency(modules, "jdk.jshell" , "java.logging" );
checkDependency(modules, "jdk.jshell" , "jdk.compiler" );
}
/*
* Verify the MODULES list must be the same for the same module graph
*/
private static void testModulesOrder(Helper helper) throws IOException {
Path image1 = helper.createNewImageDir("test1" );
List<String> modules1 = modulesProperty(image1, helper.defaultModulePath(),
"jdk.jshell" );
Path image2 = helper.createNewImageDir("test2" );
List<String> modules2 = modulesProperty(image2, helper.defaultModulePath(),
"jdk.jshell" );
if (!modules1.equals(modules2)) {
throw new AssertionError("MODULES should be a stable order: " +
modules1 + " vs " + modules2);
}
}
private static void checkDependency(List<String> modules, String fromMod, String toMod) {
int fromModIdx = modules.indexOf(fromMod);
if (fromModIdx == -1 ) {
throw new AssertionError(fromMod + " is missing in MODULES" );
}
int toModIdx = modules.indexOf(toMod);
if (toModIdx == -1 ) {
throw new AssertionError(toMod + " is missing in MODULES" );
}
if (toModIdx > fromModIdx) {
throw new AssertionError("in MODULES, " + fromMod + " should appear after " + toMod);
}
}
}
Messung V0.5 in Prozent C=99 H=89 G=94
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-09-29)
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