/*
* Copyright (c) 2019, 2021, 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 8264048
*
* @run main/othervm RemoveJar true true testpkg.Test testpkg.Test testjar/
* @run main/othervm RemoveJar true true testpkg.Test testpkg.Missing testjar/
* @run main/othervm RemoveJar true true testpkg.Missing testpkg.Test testjar/
* @run main/othervm RemoveJar true true testpkg.Missing testpkg.Missing testjar/
*
* @run main/othervm RemoveJar true false testpkg.Test testpkg.Test testjar/
* @run main/othervm RemoveJar true false testpkg.Test testpkg.Missing testjar/
* @run main/othervm RemoveJar true false testpkg.Missing testpkg.Test testjar/
* @run main/othervm RemoveJar true false testpkg.Missing testpkg.Missing testjar/
*
* @run main/othervm RemoveJar false true testpkg.Test testpkg.Test testjar/
* @run main/othervm RemoveJar false true testpkg.Test testpkg.Missing testjar/
* @run main/othervm RemoveJar false true testpkg.Missing testpkg.Test testjar/
* @run main/othervm RemoveJar false true testpkg.Missing testpkg.Missing testjar/
*
* @run main/othervm RemoveJar false false testpkg.Test testpkg.Test testjar/
* @run main/othervm RemoveJar false false testpkg.Test testpkg.Missing testjar/
* @run main/othervm RemoveJar false false testpkg.Missing testpkg.Test testjar/
* @run main/othervm RemoveJar false false testpkg.Missing testpkg.Missing testjar/
*
* @run main/othervm RemoveJar true true testpkg.Test testpkg.Test badpath
*
* @summary URLClassLoader.close() doesn't close cached JAR file on Windows when load() fails
*/
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.PrintStream;
import java.io.UncheckedIOException;
import java.net.URL;
import java.net.URLClassLoader;
import java.net.URLConnection;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Arrays;
import java.util.stream.Stream;
import java.util.zip.ZipException;
import java.util.spi.ToolProvider;
public class RemoveJar {
private final static String TEST_PKG =
"testpkg";
private final static String JAR_DIR =
"testjar/" + TEST_PKG;
private final static String FILE_NAME =
"testjar.jar";
private final static ByteArrayOutputStream baos =
new ByteArrayOutputStream();
private final static PrintStream out =
new PrintStream(baos);
private final static ToolProvider JAR_TOOL = ToolProvider.findFirst(
"jar")
.orElseThrow(() ->
new RuntimeException(
"jar tool not found")
);
private static void buildJar()
throws IOException {
// create dir
mkdir(JAR_DIR);
// create file
Path path = Paths.get(JAR_DIR);
String src =
"package " + TEST_PKG +
";\n" +
"class Test {}\n";
Files.write(Paths.get(JAR_DIR +
"/Test.java"), src.getBytes());
// compile class
compile(JAR_DIR +
"/Test.java");
// package jar
jar(
"-cf testjar.jar " + JAR_DIR);
}
public static void main(String args[])
throws Exception {
buildJar();
URLClassLoader loader =
null;
URL url =
null;
Path path = Paths.get(FILE_NAME);
boolean useCacheFirst =
Boolean.parseBoolean(args[
0]);
boolean useCacheSecond =
Boolean.parseBoolean(args[
1]);
String firstClass = args[
2];
String secondClass = args[
3];
String subPath = args[
4];
try {
String path_str = path.toUri().toURL().toString();
URLConnection.setDefaultUseCaches(
"jar", useCacheFirst);
url =
new URL(
"jar",
"", path_str +
"!/" + subPath);
loader =
new URLClassLoader(
new URL[]{url});
loader.loadClass(firstClass);
}
catch (Exception e) {
System.err.println(
"EXCEPTION: " + e);
}
try {
URLConnection.setDefaultUseCaches(
"jar", useCacheSecond);
loader.loadClass(secondClass);
}
catch (Exception e) {
System.err.println(
"EXCEPTION: " + e);
}
finally {
loader.close();
Files.
delete(path);
}
}
private static Stream<Path> mkpath(String... args) {
return Arrays.stream(args).map(d -> Paths.get(
".", d.split(
"/")));
}
private static void mkdir(String cmdline) {
System.out.println(
"mkdir -p " + cmdline);
mkpath(cmdline.split(
" +")).forEach(p -> {
try {
Files.createDirectories(p);
}
catch (IOException x) {
throw new UncheckedIOException(x);
}
});
}
private static void jar(String cmdline)
throws IOException {
System.out.println(
"jar " + cmdline);
baos.reset();
// the run method catches IOExceptions, we need to expose them
ByteArrayOutputStream baes =
new ByteArrayOutputStream();
PrintStream err =
new PrintStream(baes);
PrintStream saveErr = System.err;
System.setErr(err);
int rc = JAR_TOOL.run(out, err, cmdline.split(
" +"));
System.setErr(saveErr);
if (rc !=
0) {
String s = baes.toString();
if (s.startsWith(
"java.util.zip.ZipException: duplicate entry: ")) {
throw new ZipException(s);
}
throw new IOException(s);
}
}
/* run javac <args> */
private static void compile(String... args) {
if (com.sun.tools.javac.Main.compile(args) !=
0) {
throw new RuntimeException(
"javac failed: args=" + Arrays.toString(args));
}
}
}
