jdk/test/jdk/java/util/jar/JarFile/SorryClosed.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * accompanied this code).
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/* @test
 * @bug 4910572
 * @summary Accessing a closed jar file should generate IllegalStateException.
 * @run junit SorryClosed
*/

import org.junit.jupiter.api.Test;

import java.io.IOException;
import java.io.File;
import java.util.jar.JarFile;
import java.util.zip.ZipEntry;

import static org.junit.jupiter.api.Assertions.assertThrows;

public class SorryClosed {

    private static final File file = new File(System.getProperty("test.src", "."), "test.jar");
    private static final String testEntryName = "test.class";

    @Test
    void getInputStreamTest() throws IOException {
        JarFile f = new JarFile(file);
        ZipEntry e = f.getEntry(testEntryName);
        f.close();
        assertThrows(IllegalStateException.class, () -> f.getInputStream(e));
    }

    @Test
    void getEntryTest() throws IOException {
        JarFile f = new JarFile(file);
        f.close();
        assertThrows(IllegalStateException.class, () -> f.getEntry(testEntryName));
    }

    @Test
    void getJarEntryTest() throws IOException {
        JarFile f = new JarFile(file);
        f.close();
        assertThrows(IllegalStateException.class, () -> f.getJarEntry(testEntryName));
    }

    @Test
    void getManifestTest() throws IOException {
        JarFile f = new JarFile(file);
        f.close();
        assertThrows(IllegalStateException.class, f::getManifest);
    }
}