/*
* Copyright ( c ) 2008 , 2022 , 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 .
*/
/**
* @ test
* @ bug 4313887 7006126 8142968 8178380 8183320 8210112 8266345 8263940
* @ modules jdk . jartool
* @ library / test / lib
* @ build SetDefaultProvider TestProvider m /* jdk.test.lib.process.ProcessTools
* @ run testng / othervm SetDefaultProvider
* @ summary Runs tests with - Djava . nio . file . spi . DefaultFileSystemProvider set on
* the command line to override the default file system provider
*/
import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.List;
import java.util.spi.ToolProvider;
import java.util.stream.Stream;
import jdk.test.lib.process.ProcessTools;
import org.testng.annotations.Test;
import static org.testng.Assert .*;
@Test
public class SetDefaultProvider {
private static final String SET_DEFAULT_FSP =
"-Djava.nio.file.spi.DefaultFileSystemProvider=TestProvider" ;
private static final ToolProvider JAR_TOOL = ToolProvider.findFirst("jar" )
.orElseThrow(() ->
new RuntimeException("jar tool not found" )
);
private static Path createTempDirectory(String prefix) throws IOException {
Path testDir = Paths.get(System.getProperty("test.dir" , "." ));
return Files.createTempDirectory(testDir, prefix);
}
/**
* Test override of default FileSystemProvider with the main application
* on the class path .
*/
public void testClassPath() throws Exception {
String moduleClasses = moduleClasses();
String testClasses = System.getProperty("test.classes" );
String classpath = moduleClasses + File.pathSeparator + testClasses;
int exitValue = exec(SET_DEFAULT_FSP, "-cp" , classpath, "p.Main" );
assertEquals(exitValue, 0 );
}
/**
* Test override of default FileSystemProvider with a
* FileSystemProvider jar and the main application on the class path .
*/
public void testClassPathWithFileSystemProviderJar() throws Exception {
String testClasses = System.getProperty("test.classes" );
Path jar = Path.of("testFileSystemProvider.jar" );
Files.deleteIfExists(jar);
createFileSystemProviderJar(jar, Path.of(testClasses));
String classpath = jar + File.pathSeparator + testClasses
+ File.separator + "modules" + File.separator + "m" ;
int exitValue = exec(SET_DEFAULT_FSP, "-cp" , classpath, "p.Main" );
assertEquals(exitValue, 0 );
}
/**
* Creates a JAR containing the FileSystemProvider used to override the
* default FileSystemProvider
*/
private void createFileSystemProviderJar(Path jar, Path dir) throws IOException {
List<String> args = new ArrayList<>();
args.add("--create" );
args.add("--file=" + jar);
try (Stream<Path> stream = Files.list(dir)) {
List<String> paths = stream
.map(path -> path.getFileName().toString())
.filter(f -> f.startsWith("TestProvider" ))
.toList();
for (var p : paths) {
args.add("-C" );
args.add(dir.toString());
args.add(p);
}
}
int ret = JAR_TOOL.run(System.out, System.out, args.toArray(new String[0 ]));
assertEquals(ret, 0 );
}
/**
* Test override of default FileSystemProvider with the main application
* on the class path and a SecurityManager enabled .
*/
public void testClassPathWithSecurityManager() throws Exception {
String moduleClasses = moduleClasses();
String testClasses = System.getProperty("test.classes" );
String classpath = moduleClasses + File.pathSeparator + testClasses;
String policyFile = System.getProperty("test.src" , "." )
+ File.separator + "fs.policy" ;
int exitValue = exec(SET_DEFAULT_FSP, "-cp" , classpath,
"-Dtest.classes=" + testClasses, "-Djava.security.manager" ,
"-Djava.security.policy==" + policyFile, "p.Main" );
assertEquals(exitValue, 0 );
}
/**
* Test override of default FileSystemProvider with the main application
* on the module path as an exploded module .
*/
public void testExplodedModule() throws Exception {
String modulePath = System.getProperty("jdk.module.path" );
int exitValue = exec(SET_DEFAULT_FSP, "-p" , modulePath, "-m" , "m/p.Main" );
assertEquals(exitValue, 0 );
}
/**
* Test override of default FileSystemProvider with the main application
* on the module path as a modular JAR .
*/
public void testModularJar() throws Exception {
String jarFile = createModularJar();
int exitValue = exec(SET_DEFAULT_FSP, "-p" , jarFile, "-m" , "m/p.Main" );
assertEquals(exitValue, 0 );
}
/**
* Test override of default FileSystemProvider where the main application
* is a module that is patched by an exploded patch .
*/
public void testExplodedModuleWithExplodedPatch() throws Exception {
Path patchdir = createTempDirectory("patch" );
String modulePath = System.getProperty("jdk.module.path" );
int exitValue = exec(SET_DEFAULT_FSP,
"--patch-module" , "m=" + patchdir,
"-p" , modulePath,
"-m" , "m/p.Main" );
assertEquals(exitValue, 0 );
}
/**
* Test override of default FileSystemProvider where the main application
* is a module that is patched by an exploded patch .
*/
public void testExplodedModuleWithJarPatch() throws Exception {
Path patchdir = createTempDirectory("patch" );
Files.createDirectory(patchdir.resolve("m.properties" ));
Path patch = createJarFile(patchdir);
String modulePath = System.getProperty("jdk.module.path" );
int exitValue = exec(SET_DEFAULT_FSP,
"--patch-module" , "m=" + patch,
"-p" , modulePath,
"-m" , "m/p.Main" );
assertEquals(exitValue, 0 );
}
/**
* Returns the directory containing the classes for module " m " .
*/
private String moduleClasses() {
String mp = System.getProperty("jdk.module.path" );
for (String dir : mp.split(File.pathSeparator)) {
Path m = Paths.get(dir, "m" );
if (Files.exists(m)) return m.toString();
}
fail();
return null ;
}
/**
* Creates a modular JAR containing module " m " .
*/
private String createModularJar() throws Exception {
Path dir = Paths.get(moduleClasses());
Path jar = createJarFile(dir);
return jar.toString();
}
/**
* Creates a JAR file containing the entries in the given file tree .
*/
private Path createJarFile(Path dir) throws Exception {
Path jar = createTempDirectory("tmp" ).resolve("m.jar" );
String[] args = { "--create" , "--file=" + jar, "-C" , dir.toString(), "." };
int ret = JAR_TOOL.run(System.out, System.out, args);
assertEquals(ret, 0 );
return jar;
}
/**
* Invokes the java launcher with the given arguments , returning the exit code .
*/
private int exec(String... args) throws Exception {
return ProcessTools.executeTestJava(args)
.outputTo(System.out)
.errorTo(System.out)
.getExitValue();
}
}
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(vorverarbeitet am 2026-10-11)
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