jdk-24/langtools/test/tools/javac/T6725036.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
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 * 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.
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/*
 * @test
 * @bug 6725036 8016760
 * @summary javac returns incorrect value for lastModifiedTime() when
 *          source is a zip file archive
 * @library /tools/lib
 * @modules jdk.compiler/com.sun.tools.javac.api
 *          jdk.compiler/com.sun.tools.javac.file
 *          jdk.compiler/com.sun.tools.javac.main
 *          jdk.compiler/com.sun.tools.javac.util
 *          jdk.jdeps/com.sun.tools.javap
 * @build ToolBox
 * @run main T6725036
 */

import java.io.File;
import java.io.IOException;
import java.util.Collections;
import java.util.Date;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;

import javax.tools.*;

import com.sun.tools.javac.file.JavacFileManager;
import com.sun.tools.javac.file.RelativePath.RelativeFile;
import com.sun.tools.javac.util.Context;

public class T6725036 {
    public static void main(String... args) throws Exception {
        new T6725036().run();
    }

    void run() throws Exception {
        RelativeFile TEST_ENTRY_NAME = new RelativeFile("java/lang/String.class");

        File testJar = createJar("test.jar", "java.lang.*");

        try (JarFile j = new JarFile(testJar)) {
            JarEntry je = j.getJarEntry(TEST_ENTRY_NAME.getPath());
            long jarEntryTime = je.getTime();

            Context context = new Context();
            JavacFileManager fm = new JavacFileManager(context, false, null);
            fm.setLocation(StandardLocation.CLASS_PATH, Collections.singletonList(testJar));
            FileObject fo =
                fm.getFileForInput(StandardLocation.CLASS_PATH, "", TEST_ENTRY_NAME.getPath());
            long jfoTime = fo.getLastModified();

            check(je, jarEntryTime, fo, jfoTime);

            if (errors > 0)
                throw new Exception(errors + " occurred");
        }
    }

    File createJar(String name, String... paths) throws IOException {
        JavaCompiler comp = ToolProvider.getSystemJavaCompiler();
        try (JavaFileManager fm = comp.getStandardFileManager(null, null, null)) {
            File f = new File(name);
            ToolBox tb = new ToolBox();
            tb.new JarTask(name)
                .files(fm, StandardLocation.PLATFORM_CLASS_PATH, paths)
                .run();
            return f;
        }
    }

    void check(Object ref, long refTime, Object test, long testTime) {
        if (refTime == testTime)
            return;
        System.err.println("Error: ");
        System.err.println("Expected: " + getText(ref, refTime));
        System.err.println("   Found: " + getText(test, testTime));
        errors++;
    }

    String getText(Object x, long t) {
        return String.format("%14d", t) + " (" + new Date(t) + ") from " + x;
    }

    int errors;
}