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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
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*
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* 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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*/
/*
* @ test
* @ bug 8271079
* @ summary JavaFileObject # toUri in MR - JAR returns real path
* @ modules java . compiler
* jdk . compiler
* @ run main T8271079
*/
import java.io.*;
import java.net.*;
import java.nio.charset.StandardCharsets;
import java.nio.file.*;
import java.util.*;
import java.util.jar.JarEntry;
import javax.tools.*;
public class T8271079 {
public static void main(String[] args) throws Exception {
new T8271079().run();
}
final PrintStream out;
T8271079() {
this .out = System.out;
}
void run() throws Exception {
Path mr = generateMultiReleaseJar();
try {
testT8271079(mr);
} finally {
Files.deleteIfExists(mr);
}
}
// $ echo 'module hello {}' > module-info.java
// $ javac -d classes --release 9 module-info.java
// $ jar --create --file mr.jar --release 9 -C classes .
Path generateMultiReleaseJar() throws Exception {
Files.writeString(Path.of("module-info.java" ), "module hello {}" );
java.util.spi.ToolProvider.findFirst("javac" ).orElseThrow()
.run(out, System.err, "-d" , "classes" , "--release" , "9" , "module-info.java" );
Path mr = Path.of("mr.jar" );
java.util.spi.ToolProvider.findFirst("jar" ).orElseThrow()
.run(out, System.err, "--create" , "--file" , mr.toString(), "--release" , "9" , "-C" , "classes" , "." );
out.println("Created: " + mr.toUri());
out.println(" Exists: " + Files.exists(mr));
return mr;
}
void testT8271079(Path path) throws Exception {
StandardJavaFileManager fileManager =
ToolProvider.getSystemJavaCompiler()
.getStandardFileManager(null , Locale.ENGLISH, StandardCharsets.UTF_8);
fileManager.setLocationFromPaths(StandardLocation.CLASS_PATH, List.of(path));
Iterator<String> options = Arrays.asList("--multi-release" , "9" ).iterator();
fileManager.handleOption(options.next(), options);
Iterable<JavaFileObject> list =
fileManager.list(
StandardLocation.CLASS_PATH, "" , EnumSet.allOf(JavaFileObject.Kind.class ), false );
for (JavaFileObject f : list) {
out.println("JavaFileObject#getName: " + f.getName());
out.println("JavaFileObject#toUri: " + f.toUri());
openUsingUri(f.toUri());
}
System.gc(); // JDK-8224794
}
void openUsingUri(URI uri) throws IOException {
URLConnection connection = uri.toURL().openConnection();
connection.setUseCaches(false ); // JDK-8224794
if (connection instanceof JarURLConnection jar) {
try {
JarEntry entry = jar.getJarEntry();
out.println("JarEntry#getName: " + entry.getName());
connection.getInputStream().close(); // JDK-8224794
} catch (FileNotFoundException e) {
throw e;
}
}
}
}
Messung V0.5 in Prozent C=93 H=92 G=92
¤ Dauer der Verarbeitung: 0.14 Sekunden
(vorverarbeitet am 2026-06-10)
¤
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