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* Copyright ( c ) 2019 , 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 .
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*/
import java.nio.file.Path;
import java.util.jar.Manifest;
import java.util.jar.Attributes.Name;
import jdk.test.lib.util.JarUtils;
import jdk.test.lib.SecurityTools;
import org.testng.annotations.Test;
import org.testng.annotations.BeforeClass;
import static java.nio.charset.StandardCharsets.UTF_8;
import static org.testng.Assert .*;
/**
* @ test
* @ bug 8217375
* @ modules java . base / sun . security . util
* @ library / test / lib / lib / testlibrary
* @ run testng EmptyJar
* @ summary Checks that signing an empty jar file does not result in an NPE or
* other error condition .
*/
public class EmptyJar {
static final String KEYSTORE_FILENAME = "test.jks" ;
@BeforeClass
public void prepareKeyStore() throws Exception {
SecurityTools.keytool("-genkeypair -keyalg EC -keystore "
+ KEYSTORE_FILENAME + " -storepass changeit -keypass changeit"
+ " -alias a -dname CN=A" ).shouldHaveExitValue(0 );
}
@Test
public void test() throws Exception {
String jarFilename = "test.jar" ;
JarUtils.createJarFile(Path.of(jarFilename), (Manifest) null ,
Path.of("." ));
SecurityTools.jarsigner("-keystore " + KEYSTORE_FILENAME +
" -storepass changeit -verbose -debug " + jarFilename + " a" )
.shouldHaveExitValue(0 );
// verify that jarsigner has added a default manifest
byte [] mfBytes = Utils.readJarManifestBytes(jarFilename);
Utils.echoManifest(mfBytes, "manifest" );
assertTrue(new String(mfBytes, UTF_8).startsWith(
Name.MANIFEST_VERSION + ": 1.0\r\nCreated-By: " ));
}
}
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