langtools/test/tools/javac/T6725036.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
 * 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).
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 * 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
 * @ignore 8016760: failure of regression test langtools/tools/javac/T6725036.java
 * @summary javac returns incorrect value for lastModifiedTime() when
 *          source is a zip file archive
 */

import java.io.File;
import java.util.Date;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
import javax.tools.JavaFileObject;

import com.sun.tools.javac.file.JavacFileManager;
import com.sun.tools.javac.file.RelativePath.RelativeFile;
import com.sun.tools.javac.file.ZipFileIndex;
import com.sun.tools.javac.file.ZipFileIndexArchive;
import com.sun.tools.javac.file.ZipFileIndexCache;
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 f = new File(System.getProperty("java.home"));
        if (!f.getName().equals("jre"))
            f = new File(f, "jre");
        File rt_jar = new File(new File(f, "lib"), "rt.jar");

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

        ZipFileIndexCache zfic = ZipFileIndexCache.getSharedInstance();
        ZipFileIndex zfi = zfic.getZipFileIndex(rt_jar, null, false, null, false);
        long zfiTime = zfi.getLastModified(TEST_ENTRY_NAME);

        check(je, jarEntryTime, zfi + ":" + TEST_ENTRY_NAME.getPath(), zfiTime);

        Context context = new Context();
        JavacFileManager fm = new JavacFileManager(context, false, null);
        ZipFileIndexArchive zfia = new ZipFileIndexArchive(fm, zfi);
        JavaFileObject jfo =
            zfia.getFileObject(TEST_ENTRY_NAME.dirname(),
                                   TEST_ENTRY_NAME.basename());
        long jfoTime = jfo.getLastModified();

        check(je, jarEntryTime, jfo, jfoTime);

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

    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;
}