MevNPE.java

/*
 * Copyright (c) 2011, 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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/* @test
 * @bug 7023056
 * @summary NPE from sun.security.util.ManifestEntryVerifier.verify during Maven build
 */
import java.io.*;
import java.util.jar.*;

public class MevNPE {
    public static void main(String[] args) throws Exception {
        File f = new File(System.getProperty("test.src", "."), "Signed.jar");
        try (JarFile jf = new JarFile(f, true)) {
            try (InputStream s1 = jf.getInputStream(
                    jf.getJarEntry(JarFile.MANIFEST_NAME))) {
                s1.read(new byte[10000]);
            };
            try (InputStream s2 = jf.getInputStream(
                    jf.getJarEntry(JarFile.MANIFEST_NAME))) {
                s2.read(new byte[10000]);
            };
        }
    }
}