test/langtools/tools/javac/file/SymLinkArchiveTest.java

/*
 * Copyright (c) 2018, Google LLC. 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 8181897
 * @summary
 * @library /tools/lib
 * @modules jdk.compiler/com.sun.tools.javac.api
 *          jdk.compiler/com.sun.tools.javac.main
 *          jdk.jdeps/com.sun.tools.classfile
 * @build toolbox.JavacTask toolbox.TestRunner toolbox.ToolBox
 * @run main SymLinkArchiveTest
 */

import java.nio.file.FileSystemException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.jar.JarEntry;
import java.util.jar.JarOutputStream;
import toolbox.JavacTask;
import toolbox.Task.Expect;
import toolbox.Task.OutputKind;
import toolbox.Task.Result;
import toolbox.TestRunner;
import toolbox.TestRunner.Test;
import toolbox.ToolBox;

public class SymLinkArchiveTest extends TestRunner {
    public static void main(String... args) throws Exception {
        new SymLinkArchiveTest().runTests(m -> new Object[] {Paths.get(m.getName())});
    }

    private final ToolBox tb = new ToolBox();

    public SymLinkArchiveTest() {
        super(System.err);
    }

    @Test
    public void testJarSymlink(Path base) throws Exception {
        Files.createDirectories(base);
        Path classpath = base.resolve("CLASSPATH");
        try (JarOutputStream jos = new JarOutputStream(Files.newOutputStream(classpath))) {
            jos.putNextEntry(new JarEntry("p/B.class"));
            jos.write(new byte[10]);
        }
        Path javaFile = base.resolve("T.java");
        tb.writeFile(javaFile, "class T extends p.B {}");

        Path jar = base.resolve("lib.jar");
        try {
            Files.createSymbolicLink(jar, classpath.getFileName());
        } catch (FileSystemException fse) {
            System.err.println("warning: test passes vacuously, sym-link could not be created");
            System.err.println(fse.getMessage());
            return;
        }

        Result result = new JavacTask(tb).files(javaFile).classpath(jar).run(Expect.FAIL);
        String output = result.getOutput(OutputKind.DIRECT);

        String expected = jar + "(/p/B.class)";
        if (!output.contains(expected)) {
            throw new AssertionError(
                    "expected output to contain: " + expected + "\nwas:\n" + output);
        }
    }
}