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/*
* Copyright (c) 2000, 2024, 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.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/* @test
@bug 4290060
@summary Check if the zip file is closed before access any
elements in the Enumeration.
@run junit EnumerateAfterClose
*/
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import java.util.zip.ZipOutputStream;
import static org.junit.jupiter.api.Assertions.assertThrows;
public class EnumerateAfterClose {
// ZIP file used in this test
private Path zip = Path.of("enum-after-close.zip");
/**
* Create a sample ZIP file for use by this test
* @throws IOException if an unexpected IOException occurs
*/
@BeforeEach
public void setUp() throws IOException {
try (OutputStream out = Files.newOutputStream(zip);
ZipOutputStream zo = new ZipOutputStream(out)) {
zo.putNextEntry(new ZipEntry("file.txt"));
zo.write("hello".getBytes(StandardCharsets.UTF_8));
}
}
/**
* Delete the ZIP file produced by this test
* @throws IOException if an unexpected IOException occurs
*/
@AfterEach
public void cleanup() throws IOException {
Files.deleteIfExists(zip);
}
/**
* Attempting to using a ZipEntry Enumeration after its backing
* ZipFile is closed should throw IllegalStateException.
*
* @throws IOException if an unexpected IOException occurs
*/
@Test
public void enumeratingAfterCloseShouldThrowISE() throws IOException {
// Retain a reference to an enumeration backed by a closed ZipFile
Enumeration e;
try (ZipFile zf = new ZipFile(zip.toFile())) {
e = zf.entries();
}
// Using the enumeration after the ZipFile is closed should throw ISE
assertThrows(IllegalStateException.class, () -> {
if (e.hasMoreElements()) {
ZipEntry ze = (ZipEntry)e.nextElement();
}
});
}
}
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