1 /*

     2  * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 import java.nio.file.Path;

    25 import java.util.jar.Manifest;

    26 import java.util.jar.Attributes.Name;

    27 

    28 import jdk.test.lib.util.JarUtils;

    29 import jdk.test.lib.SecurityTools;

    30 import org.testng.annotations.Test;

    31 import org.testng.annotations.BeforeClass;

    32 

    33 import static java.nio.charset.StandardCharsets.UTF_8;

    34 import static org.testng.Assert.*;

    35 

    36 /**

    37  * @test

    38  * @bug 8217375

    39  * @modules java.base/sun.security.util

    40  * @library /test/lib /lib/testlibrary

    41  * @run testng EmptyJar

    42  * @summary Checks that signing an empty jar file does not result in an NPE or

    43  * other error condition.

    44  */

    45 public class EmptyJar {

    46 

    47     static final String KEYSTORE_FILENAME = "test.jks";

    48 

    49     @BeforeClass

    50     public void prepareKeyStore() throws Exception {

    51         SecurityTools.keytool("-genkeypair -keyalg EC -keystore "

    52                 + KEYSTORE_FILENAME + " -storepass changeit -keypass changeit"

    53                 + " -alias a -dname CN=A").shouldHaveExitValue(0);

    54     }

    55 

    56     @Test

    57     public void test() throws Exception {

    58         String jarFilename = "test.jar";

    59         JarUtils.createJarFile(Path.of(jarFilename), (Manifest) null,

    60                 Path.of("."));

    61         SecurityTools.jarsigner("-keystore " + KEYSTORE_FILENAME +

    62                 " -storepass changeit -verbose -debug " + jarFilename + " a")

    63                 .shouldHaveExitValue(0);

    64 

    65         // verify that jarsigner has added a default manifest

    66         byte[] mfBytes = Utils.readJarManifestBytes(jarFilename);

    67         Utils.echoManifest(mfBytes, "manifest");

    68         assertTrue(new String(mfBytes, UTF_8).startsWith(

    69                 Name.MANIFEST_VERSION + ": 1.0\r\nCreated-By: "));

    70     }

    71 

    72 }